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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q



☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2019



☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _________________________________ to _________________________________

Commission File Number: 1-09447

KAISER ALUMINUM CORPORATION

(Exact name of registrant as specified in its charter)



Delaware			94-3030279
(State of incorporation)			(I.R.S. Employer Identification No.)

27422 Portola Parkway,		Suite 200
Foothill Ranch,	California		92610-2831
(Address of principal executive offices)			(Zip Code)

(949) 614-1740

(Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):



Large accelerated filer	☒	Accelerated filer	☐

Non-accelerated filer	☐ (Do not check if a smaller reporting company)	Smaller reporting company	☐

		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Securities registered pursuant to Section 12(b) of the Act:



Title of each class	Trading Symbol	Name of each exchange on which registered
Common stock, par value $0.01 per share	KALU	Nasdaq Global Select Market

As of July 22, 2019, there were 16,003,045 shares of common stock of the registrant outstanding.

TABLE OF CONTENTS



PART I
Item 1. Financial Statements	1
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	36
Item 3. Quantitative and Qualitative Disclosures About Market Risk	47
Item 4. Controls and Procedures	48

PART II
Item 1. Legal Proceedings	49
Item 1A. Risk Factors	49
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	49
Item 3. Defaults Upon Senior Securities	49
Item 4. Mine Safety Disclosures	49
Item 5. Other Information	50
Item 6. Exhibits	50

SIGNATURES	51

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

CONSOLIDATED BALANCE SHEETS (UNAUDITED)



	June 30, 2019			December 31, 2018
	(In millions of dollars, except share and per share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$	122.4		$	125.6
Short-term investments	24.4			36.7
Receivables:
Trade receivables, net	178.1			179.8
Other	25.1			25.6
Contract assets	46.9			54.9
Inventories	231.1			215.1
Prepaid expenses and other current assets	21.7			18.9
Total current assets	649.7			656.6
Property, plant and equipment, net	613.8			611.8
Operating lease assets	26.8			—
Deferred tax assets, net	15.5			35.9
Intangible assets, net	31.0			32.4
Goodwill	44.0			44.0
Other assets	41.3			38.6
Total	$	1,422.1		$	1,419.3
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	101.3		$	121.4
Accrued salaries, wages and related expenses	30.4			40.1
Other accrued liabilities	47.2			44.0
Total current liabilities	178.9			205.5
Long-term portion of operating lease liabilities	26.0			—
Net liabilities of Salaried VEBA	32.6			32.4
Deferred tax liabilities	4.2			4.2
Long-term liabilities	63.2			66.4
Long-term debt	370.9			370.4
Total liabilities	675.8			678.9
Commitments and contingencies – Note 7
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized at both June 30, 2019 and December 31, 2018; no shares were issued and outstanding at June 30, 2019 and December 31, 2018	—			—
Common stock, par value $0.01, 90,000,000 shares authorized at both June 30, 2019 and at December 31, 2018; 22,549,931 shares issued and 16,028,675 shares outstanding at June 30, 2019; 22,471,705 shares issued and 16,234,603 shares outstanding at December 31, 2018	0.2			0.2
Additional paid in capital	1,059.2			1,059.3
Retained earnings	177.3			150.2
Treasury stock, at cost, 6,521,256 shares at June 30, 2019 and 6,237,102 shares at December 31, 2018, respectively	(448.1		)	(420.5		)
Accumulated other comprehensive loss	(42.3		)	(48.8		)
Total stockholders' equity	746.3			740.4
Total	$	1,422.1		$	1,419.3

The accompanying notes to interim consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED INCOME (UNAUDITED)



	Quarter Ended						Six Months Ended
	June 30,						June 30,
	2019			2018			2019			2018
	(In millions of dollars, except share and per share amounts)
Net sales	$	375.3		$	415.4		$	770.5		$	803.4
Costs and expenses:
Cost of products sold, excluding depreciation and amortization and other items	303.5			343.4			618.6			660.1
Depreciation and amortization	12.1			10.9			24.0			21.4
Selling, general, administrative, research and development	27.2			26.4			52.4			50.0
Other operating charges, net	0.1			—			0.1			0.1
Total costs and expenses	342.9			380.7			695.1			731.6
Operating income	32.4			34.7			75.4			71.8
Other (expense) income:
Interest expense	(5.8		)	(5.7		)	(11.5		)	(11.3		)
Other (expense) income, net – Note 9	(0.1		)	(0.5		)	0.4			(0.4		)
Income before income taxes	26.5			28.5			64.3			60.1
Income tax provision	(7.3		)	(7.8		)	(17.1		)	(13.7		)
Net income	$	19.2		$	20.7		$	47.2		$	46.4

Net income per common share:
Basic	$	1.19		$	1.24		$	2.93		$	2.78
Diluted	$	1.18		$	1.22		$	2.89		$	2.74
Weighted-average number of common shares outstanding (in thousands):
Basic	16,063			16,685			16,085			16,696
Diluted	16,240			16,905			16,298			16,962

The accompanying notes to interim consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (UNAUDITED)



	Quarter Ended						Six Months Ended
	June 30,						June 30,
	2019			2018			2019			2018
	(In millions of dollars)
Net income	$	19.2		$	20.7		$	47.2		$	46.4
Other comprehensive (loss) income, net of tax – Note 8:
Defined benefit pension plan and Salaried VEBA	1.1			1.2			2.2			2.4
Available for sale securities	(0.1		)	(0.1		)	(0.3		)	(0.3		)
Cash flow hedges	(4.2		)	5.3			4.6			(4.0		)
Other comprehensive (loss) income, net of tax	(3.2		)	6.4			6.5			(1.9		)
Comprehensive income	$	16.0		$	27.1		$	53.7		$	44.5

The accompanying notes to interim consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY (UNAUDITED)

Six Months Ended June 30, 2019



	Common Shares Outstanding		Common Stock		Additional Paid in Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Total
	(In millions of dollars, except share and per share amounts)
BALANCE, December 31, 2018	16,234,603		$	0.2	$	1,059.3		$	150.2		$	(420.5	)	$	(48.8	)	$	740.4
Net income	—		—		—			28.0			—			—			28.0
Other comprehensive income, net of tax	—		—		—			—			—			9.7			9.7
Issuance of common shares to employees upon vesting of restricted stock units and performance shares	122,309		—		—			—			—			—			—
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares	(46,388	)	—		(5.0		)	—			—			—			(5.0		)
Repurchase of common stock¹	(175,977	)	—		—			—			(17.4		)	—			(17.4		)
Cash dividends on common stock and restricted shares and dividend equivalents on restricted stock units and performance shares²	—		—		—			(10.2		)	—			—			(10.2		)
Amortization of unearned equity compensation	—		—		2.4			—			—			—			2.4
BALANCE, March 31, 2019	16,134,547		$	0.2	$	1,056.7		$	168.0		$	(437.9	)	$	(39.1	)	$	747.9
Net income	—		—		—			19.2			—			—			19.2
Other comprehensive loss, net of tax	—		—		—			—			—			(3.2		)	(3.2		)
Issuance of non-vested shares to non-employee directors	11,850		—		—			—			—			—			—
Issuance of common shares to non-employee directors	2,850		—		0.3			—			—			—			0.3
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares	(12,395	)	—		(1.2		)	—			—			—			(1.2		)
Repurchase of common stock¹	(108,177	)	—		—			—			(10.2		)	—			(10.2		)
Cash dividends on common stock and restricted shares and dividend equivalents on restricted stock units and performance shares²	—		—		—			(9.9		)	—			—			(9.9		)
Amortization of unearned equity compensation	—		—		3.4			—			—			—			3.4
BALANCE, June 30, 2019	16,028,675		$	0.2	$	1,059.2		$	177.3		$	(448.1	)	$	(42.3	)	$	746.3

____________________


¹	Weighted-average repurchase price (dollars per share) for the quarters ended March 31, 2019 and June 30, 2019 was $98.55 and $95.00, respectively. At June 30, 2019, $121.0 million remained available to repurchase our common shares pursuant to the stock repurchase program.


²	Dividends declared per common share were $0.60 during each of the quarters ended March 31, 2019 and June 30, 2019.

The accompanying notes to interim consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY CONTINUED (UNAUDITED)

Six Months Ended June 30, 2018



	Common Shares Outstanding		Common Stock		Additional Paid in Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Total
	(In millions of dollars, except share and per share amounts)
BALANCE, December 31, 2017	16,773,586		$	0.2	$	1,055.9		$	85.5		$	(358.6	)	$	(36.7	)	$	746.3
Cumulative-effect adjustment	—		—		—			10.5			—			(0.4		)	10.1
BALANCE, January 1, 2018	16,773,586		$	0.2	$	1,055.9		$	96.0		$	(358.6	)	$	(37.1	)	$	756.4
Net income	—		—		—			25.7			—			—			25.7
Other comprehensive loss, net of tax	—		—		—			—			—			(8.3		)	(8.3		)
Issuance of common shares to employees upon vesting of restricted stock units and performance shares	135,134		—		—			—			—			—			—
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares	(68,029	)	—		(6.9		)	—			—			—			(6.9		)
Repurchase of common stock¹	(58,155	)	—		—			—			(6.1		)	—			(6.1		)
Cash dividends on common stock and restricted shares and dividend equivalents on restricted stock units and performance shares²	—		—		—			(10.0		)	—			—			(10.0		)
Amortization of unearned equity compensation	—		—		2.8			—			—			—			2.8
BALANCE, March 31, 2018	16,782,536		$	0.2	$	1,051.8		$	111.7		$	(364.7	)	$	(45.4	)	$	753.6
Net income	—		—		—			20.7			—			—			20.7
Other comprehensive income, net of tax	—		—		—			—			—			6.4			6.4
Issuance of non-vested shares to non-employee directors	9,009		—		—			—			—			—			—
Issuance of common shares to non-employee directors	1,954		—		0.2			—			—			—			0.2
Issuance of common shares to employees upon vesting of restricted stock units and performance shares	82		—		—			—			—			—			—
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares	(95	)	—		—			—			—			—			—
Repurchase of common stock¹	(127,545	)	—		—			—			(13.3		)	—			(13.3		)
Cash dividends on common stock and restricted shares and dividend equivalents on restricted stock units and performance shares²	—		—		—			(9.3		)	—			—			(9.3		)
Amortization of unearned equity compensation	—		—		2.7			—			—			—			2.7
BALANCE, June 30, 2018	16,665,941		$	0.2	$	1,054.7		$	123.1		$	(378.0	)	$	(39.0	)	$	761.0

____________________


¹	Weighted-average repurchase price (dollars per share) for the quarters ended March 31, 2018 and June 30, 2018 was $104.50 and $104.74, respectively.


²	Dividends declared per common share were $0.55 during each of the quarters ended March 31, 2018 and June 30, 2018.

The accompanying notes to interim consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED)



	Six Months Ended
	June 30,
	2019			2018
	(In millions of dollars)
Cash flows from operating activities¹:
Net income	$	47.2		$	46.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	22.6			20.7
Amortization of definite-lived intangible assets	1.4			0.7
Amortization of debt discount and debt issuance costs	0.6			0.5
Deferred income taxes	18.3			17.8
Non-cash equity compensation	6.1			5.7
Gain on disposition of available for sale securities	(0.4		)	(1.5		)
Non-cash asset impairment charge	0.1			0.1
(Gain) loss on disposition of property, plant and equipment	(0.2		)	0.1
Other non-cash changes in assets and liabilities	6.1			15.7
Changes in operating assets and liabilities:
Trade and other receivables	2.2			(29.6		)
Contract assets	8.0			3.0
Inventories	(16.0		)	(10.0		)
Prepaid expenses and other current assets	(4.3		)	(3.0		)
Accounts payable	(13.4		)	43.9
Accrued liabilities	(6.6		)	(10.8		)
Annual variable cash contributions to VEBAs	(2.1		)	(15.7		)
Long-term assets and liabilities, net	0.9			—
Net cash provided by operating activities	70.5			84.0
Cash flows from investing activities¹:
Capital expenditures	(29.9		)	(35.8		)
Purchase of available for sale securities	(33.0		)	(24.0		)
Purchase of equity securities	(0.7		)	(0.9		)
Proceeds from disposition of available for sale securities	45.7			136.6
Proceeds from disposition of property, plant and equipment	0.2			—
Net cash (used in) provided by investing activities	(17.7		)	75.9
Cash flows from financing activities¹:
Repayment of finance lease	(0.6		)	(0.3		)
Cancellation of shares to cover employees' tax withholdings upon vesting of non-vested shares	(6.2		)	(6.9		)
Repurchase of common stock	(28.6		)	(18.9		)
Cash dividends and dividend equivalents paid	(20.1		)	(19.3		)
Net cash used in financing activities	(55.5		)	(45.4		)
Net (decrease) increase in cash, cash equivalents and restricted cash during the period	(2.7		)	114.5
Cash, cash equivalents and restricted cash at beginning of period	139.6			64.3
Cash, cash equivalents and restricted cash at end of period	$	136.9		$	178.8

____________________


¹	See Note 12 for supplemental cash flow information.

The accompanying notes to interim consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

NOTES INDEX



Note		Page
Note 1	Summary of Significant Accounting Policies	8
Note 2	Supplemental Balance Sheet Information	11
Note 3	Leases	12
Note 4	Employee Benefits	14
Note 5	Derivatives, Hedging Programs and Other Financial Instruments	16
Note 6	Debt and Credit Facility	20
Note 7	Commitments and Contingencies	20
Note 8	Accumulated Other Comprehensive Loss	21
Note 9	Other (Expense) Income, Net	23
Note 10	Income Tax Matters	23
Note 11	Net Income Per Share and Stockholders' Equity	24
Note 12	Supplemental Cash Flow Information	25
Note 13	Business, Product and Geographical Area Information and Concentration of Risk	25
Note 14	Condensed Guarantor and Non-Guarantor Financial Information	27
Note 15	Subsequent Events	35

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

1. Summary of Significant Accounting Policies

This Quarterly Report on Form 10-Q (this "Report") should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2018. Unless the context otherwise requires, references in these notes to interim consolidated financial statements - unaudited to "Kaiser Aluminum Corporation," "we," "us," "our," "the Company" and "our Company" refer collectively to Kaiser Aluminum Corporation and its subsidiaries.

Organization and Nature of Operations. Kaiser Aluminum Corporation specializes in the production of semi-fabricated specialty aluminum mill products, such as aluminum plate and sheet and extruded and drawn products, for the following end market applications: aerospace and high strength ("Aero/HS products"), automotive ("Automotive Extrusions"), general engineering ("GE products") and other industrial ("Other products"). Our business is organized into one operating segment. See Note 13 for additional information regarding our business, product and geographical area information and concentration of risk.

Principles of Consolidation and Basis of Presentation. The accompanying unaudited consolidated financial statements include the accounts of our wholly owned subsidiaries and are prepared in accordance with United States generally accepted accounting principles ("GAAP") and the rules and regulations of the Securities and Exchange Commission ("SEC") applicable for interim periods and, therefore, do not include all information and footnotes required by GAAP for complete financial statements. In management's opinion, all adjustments (which include normal recurring adjustments) considered necessary for a fair presentation have been included. The results of operations for our interim periods are not necessarily indicative of the results of operations that may be achieved for the entire 2019 fiscal year. The financial information as of December 31, 2018 is derived from our audited consolidated financial statements and footnotes included in our Annual Report on Form 10-K for the year ended December 31, 2018.

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities known to exist as of the date the financial statements are published and the reported amounts of revenues and expenses during the reporting period. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of our consolidated financial statements; accordingly, it is possible that the actual results could differ from these estimates and assumptions, which could have a material effect on the reported amounts of our consolidated financial position and results of operations.

Fair Value Measurements. We apply the fair value hierarchy established by GAAP for the recognition and measurement of certain financial assets and liabilities. An asset or liability's fair value classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. In determining fair value, we utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible and consider counterparty risk in our assessment of fair value. We also review the underlying inputs that are significant to the fair value measurement of financial instruments to determine if a transfer among hierarchy levels is appropriate. We historically have not had significant transfers into or out of each hierarchy level.

Financial assets and liabilities that we measure at fair value each period include our derivative instruments, equity investments related to our deferred compensation plan and debt investment securities classified as available for sale securities (see Note 4 and Note 5). Additionally, we measure at fair value once each year at December 31 our Canadian defined benefit pension plan and the plan assets of the Salaried VEBA (defined in Note 4). We record our remaining financial assets and liabilities at carrying value.

For a majority of our non-financial assets and liabilities, which include goodwill, intangible assets, inventories and property, plant and equipment, we are not required to measure their fair value on a recurring basis. However, if certain triggering events occur (or at least annually for goodwill), an evaluation of the affected non-financial asset or liability will be required, which could result in a reduction to the carrying amount of such asset or liability.

None of our non-financial assets and liabilities subject to fair value assessments on a non-recurring basis required a material adjustment to the carrying amount of such assets and liabilities for the quarter and six months ended June 30, 2019.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

Inventories. Inventories are stated at the lower of cost or market value. Finished products, work-in-process and raw material inventories are stated on the last-in, first-out ("LIFO") basis. At June 30, 2019 and December 31, 2018, the current cost of our inventory exceeded its stated LIFO value by $12.8 million and $31.7 million, respectively. Other inventories are stated on the first-in, first-out basis and consist of operating supplies, which are materials and supplies to be consumed during the production process. Inventory costs consist of material, labor and manufacturing overhead, including depreciation. Abnormal costs, such as idle facility expenses, freight, handling costs and spoilage, are accounted for as current period charges (see Note 2 for the components of inventories).

Replacement Parts. Replacement parts consist of preventative maintenance and capital spare parts, which are stated on the first-in, first-out basis. Replacement parts are recorded within Prepaid expenses and other current assets or Other assets depending on whether or not the expected utilization of the replacement parts is to occur within the current operating cycle.

Property, Plant and Equipment, Net. Property, plant and equipment, net is recorded at cost and includes construction in progress (see Note 2). Interest related to the construction of qualifying assets is capitalized as part of the construction costs. The amount of interest expense capitalized as construction in progress was $0.4 million for each of the quarters ended June 30, 2019 and June 30, 2018. The amount of interest expense capitalized as construction in progress was $0.9 million for each of the six months ended June 30, 2019 and June 30, 2018.

Depreciation is computed using the straight-line method at rates based on the estimated useful lives of the various classes of assets. Finance lease assets and leasehold improvements are depreciated on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term.

We classify assets as held for sale only when an asset is being actively marketed and expected to sell within 12 months. Assets held for sale are initially measured at the lesser of the assets' carrying amount and the fair value less costs to sell.

Derivative Financial Instruments. Consistent with guidelines established by management and approved by our Board of Directors, we use derivative financial instruments to mitigate our exposure to changes in the market price of aluminum, alloying metals, energy, and, to a lesser extent, foreign currency exchange rates. We do not use derivative financial instruments for trading or other speculative purposes. Hedging transactions are executed centrally on behalf of all of our operations to minimize transaction costs, monitor consolidated net exposures and allow for increased responsiveness to changes in market factors.

We reflect the fair value of all of our derivative instruments on our Consolidated Balance Sheets (see Note 5). The fair value of hedges settling within one year is included in Prepaid expenses and other current assets or Other accrued liabilities. The fair value of hedges settling beyond one year is included in Other assets or Long-term liabilities.

We designate our aluminum and energy derivatives as well as our forward swap contracts for zinc and copper ("Alloying Metals") used in our fabrication operations as cash flow hedges. Unrealized gains and losses associated with our cash flow hedges are deferred in Other comprehensive (loss) income, net of tax, and reclassified to Cost of products sold, excluding depreciation and amortization and other items ("COGS") when such hedges settle (see Note 5).

Self Insurance of Workers' Compensation and Employee Healthcare Liabilities. We self-insure the majority of the costs of workers' compensation benefits and employee healthcare benefits and rely on insurance coverage to protect us from large losses on individual claims. Workers' compensation liabilities are based on a combination of estimates for: (i) incurred-but-not-reported claims and (ii) the ultimate expense of incurred claims. Such estimates are based on judgment, using our historical claims data and information and analysis provided by actuarial and claims advisors, our insurance carriers and other professionals. Our undiscounted workers' compensation liabilities were estimated at $27.2 million and $27.6 million as of June 30, 2019 and December 31, 2018, respectively. However, we accounted for our workers' compensation accrued liabilities on a discounted basis (see Note 2), using a discount rate of 2.00% and 3.00% at June 30, 2019 and December 31, 2018, respectively. Accrued liabilities for employee healthcare benefits, which are estimates of unpaid incurred medical and prescription drug costs as provided by our healthcare administrators, were $3.3 million and $3.6 million as of June 30, 2019 and December 31, 2018, respectively.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

Short-Term Incentive Plans ("STI Plans"). We have annual short-term incentive compensation plans for senior management and certain other employees payable at our election in cash, shares of common stock or a combination of cash and shares of common stock. Amounts earned under STI Plans are based on our adjusted earnings before interest, taxes, depreciation and amortization ("Adjusted EBITDA"), modified for certain safety, quality, delivery, cost and individual performance factors. The Adjusted EBITDA targets are determined based on the return on adjusted net assets. Most of our production facilities have similar programs for both hourly and salaried employees. As of June 30, 2019, we had a liability of $5.1 million recorded within Accrued salaries, wages and related expenses for estimated probable future payments relating to the six month performance period of our 2019 STI Plan.

Long-Term Incentive Programs. Executive officers and other key employees of the Company, as well as non-employee directors of the Company, are eligible to participate in the Kaiser Aluminum Corporation 2016 Equity and Incentive Compensation Plan approved by stockholders on May 26, 2016 ("2016 Plan"). At June 30, 2019, 481,924 shares were available for awards under the 2016 Plan. We issue new shares of our common stock upon vesting under the 2016 Plan.

Adoption of New Accounting Pronouncements

ASU No. 2016-02, Leases (Topic 842): Amendments to the Financial Accounting Standards Board Accounting Standards Codification ("ASU 2016-02"), was issued in February 2016 (with amendments issued in 2018) and requires lessees to recognize a right-of-use asset and a lease liability for virtually all of their leases (other than leases that meet the definition of a short-term lease). For income statement purposes, a dual model was retained, requiring leases to be classified as either operating or finance. Operating leases will result in straight-line expense (similar to operating leases under the previous guidance) while finance leases will result in a front-loaded expense pattern (similar to capital leases under the previous guidance). We adopted ASU 2016-02 and its subsequent amendments (together "ASC 842") during the quarter ended March 31, 2019 using the transition approach provided for under ASU No. 2018-11, Leases (Topic 842): Targeted Improvements, which allowed us to apply the new lease standard as of January 1, 2019, rather than the beginning of the earliest period presented. We elected the package of practical expedients, which permitted us to: (i) not reassess whether any of our contracts contained leases; (ii) carry forward the historical lease classification of our existing leases; and (iii) not reassess initial direct costs for our existing leases. We did not elect to apply the hindsight practical expedient when determining lease term and assessing impairment of right-of-use assets. Due to our adoption of ASC 842, we recorded an operating lease right-of-use asset of $29.0 million, a current operating lease liability of $4.1 million and a long-term operating lease liability of $27.4 million on our Consolidated Balance Sheets as of January 1, 2019. There was no cumulative-effect adjustment to Retained earnings required. The standard did not materially impact our consolidated net earnings and had no impact on cash flows. Comparative information in this Report has not been adjusted and continues to be reported under the previous lease accounting rules. See Note 3 for details of the significant changes and quantitative impacts of the changes, as well as other required disclosures related to our adoption of ASC 842.

There were no material impacts on our consolidated financial statements resulting from our adoption in the quarter ended March 31, 2019 of: (i) ASU No. 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting and (ii) ASU No. 2018-08, Not-for-Profit Entities (Topic 958): Clarifying the Scope and the Accounting Guidance for Contributions Received and Contributions Made.

Accounting Pronouncements Issued But Not Yet Adopted

ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"), was issued in June 2016. Under ASU 2016-13, existing guidance on reporting credit losses for trade and other receivables and available for sale debt securities will be replaced with a new forward-looking "expected loss" model that generally will result in the earlier recognition of allowances for losses. We are currently in the process of evaluating the impact of adopting ASU 2016-13 in 2020, but do not expect it to have a material impact on our consolidated financial statements.

ASU No. 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract ("ASU 2018-15"), was issued in August 2018. Under ASU 2018-15, requirements for capitalizing implementation costs incurred in a hosting arrangement (cloud computing) that is a service contract are to be aligned with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. We are currently in the process of evaluating the impact of adopting ASU 2018-15 in 2020, but do not expect it to have a material impact on our consolidated financial statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

2. Supplemental Balance Sheet Information



	June 30, 2019			December 31, 2018
	(In millions of dollars)
Cash and Cash Equivalents
Cash and money market funds	$	32.2		$	22.9
Commercial paper	90.2			102.7
Total	$	122.4		$	125.6

Trade Receivables, Net
Billed trade receivables	$	178.9		$	179.5
Unbilled trade receivables	—			1.1
Trade receivables, gross	178.9			180.6
Allowance for doubtful receivables	(0.8		)	(0.8		)
Trade receivables, net	$	178.1		$	179.8

Inventories
Finished products	$	44.2		$	48.0
Work-in-process	98.5			85.6
Raw materials	81.0			75.0
Operating supplies	7.4			6.5
Total	$	231.1		$	215.1

Property, Plant and Equipment, Net
Land and improvements	$	21.4		$	21.4
Buildings and leasehold improvements	98.7			97.0
Machinery and equipment	783.6			755.6
Construction in progress	38.1			43.6
Property, plant and equipment, gross	941.8			917.6
Accumulated depreciation	(329.6		)	(307.4		)
Assets held for sale	1.6			1.6
Property, plant and equipment, net	$	613.8		$	611.8

Other Accrued Liabilities
Uncleared cash disbursements	$	3.5		$	4.8
Accrued income taxes and taxes payable	7.8			6.5
Accrued annual contribution to Salaried VEBA	—			2.1
Accrued interest	2.9			2.9
Other – Note 5	33.0			27.7
Total	$	47.2		$	44.0

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED



	June 30, 2019		December 31, 2018
	(In millions of dollars)
Long-Term Liabilities
Workers' compensation accruals	$	25.9	$	24.6
Long-term environmental accrual – Note 7	12.6		14.3
Other long-term liabilities	24.7		27.5
Total	$	63.2	$	66.4

3. Leases

We determine whether an agreement is a lease at inception. We have operating and finance leases for equipment and real estate that primarily have fixed lease payments. Our leases have remaining lease terms of one to 15 years, some of which may include options to extend the lease for up to 20 years, and some of which may include options to terminate the lease within one year. None of our options to extend or terminate are reasonably certain of being exercised, and are therefore not included in our determination of lease assets and liabilities. Short-term leases with an initial term of 12 months or less are not recorded in our Consolidated Balance Sheets.

As most of our leases do not provide an implicit rate, we use information available at the lease commencement date in determining an incremental borrowing rate when calculating our operating lease assets and operating lease liabilities. In determining the inputs to the incremental borrowing rate calculation, we make judgments about the value of the leased asset, our credit rating and the lease term including the probability of our exercising options to extend or terminate the underlying lease. Additionally, we make judgments around contractual asset substitution rights in determining whether a contract contains a lease.

We have lease agreements with lease and non-lease components, which are generally accounted for separately. These non-lease components include items such as common area maintenance, taxes and insurance for our real estate leases, as well as maintenance charges related to our equipment leases. We have, however, applied the practical expedient within ASU 2016-02 to not separate lease and non-lease components to our embedded supply system equipment leases and have therefore accounted for both lease and non-lease components in determining the lease assets and liabilities.

Many of our equipment leases contain clauses that require us to return the equipment with certain functionality intact. We account for these costs as residual value guarantees when the guarantee becomes probable of being owed. Our lease agreements do not contain any material restrictive covenants.

The following table presents lease terms and discount rates as of June 30, 2019:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

The following table summarizes the classification of lease assets and lease liabilities in our Consolidated Balance Sheet at June 30, 2019 (in millions of dollars):



Leases	Classification	June 30, 2019
Assets
Operating lease assets	Operating lease assets	$	26.8
Finance lease assets	Property, plant and equipment, net	6.9
Total lease assets		$	33.7

Liabilities
Current:
Operating lease liabilities	Other accrued liabilities	$	3.6
Finance lease liabilities	Other accrued liabilities	1.2
Non-current:
Operating lease liabilities	Long-term portion of operating lease liabilities	26.0
Finance lease liabilities	Long-term liabilities	5.7
Total lease liabilities		$	36.5

The following table summarizes the components of lease cost in our Statements of Consolidated Income for the periods presented (in millions of dollars):



Lease Cost	Quarter Ended June 30, 2019		Six Months Ended June 30, 2019
Operating lease cost	$	1.8	$	3.8
Short-term lease cost	0.2		0.5
Finance lease cost:
Amortization of leased assets	0.3		0.7
Interest on lease liabilities	0.1		0.2
Total lease cost	$	2.4	$	5.2

The following table presents the maturity of our lease liabilities as of June 30, 2019 (in millions of dollars):



Maturity of Lease Liabilities	Finance Leases			Operating Leases
Remainder of 2019	$	0.8		$	2.6
2020	1.4			4.9
2021	1.2			4.2
2022	1.1			3.6
2023	1.1			3.4
2024	0.8			3.3
2025 and thereafter	1.6			18.6
Total minimum lease payments	$	8.0		$	40.6

Less: interest	(1.1		)	(11.0		)
Present value	$	6.9		$	29.6

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

The following table presents minimum rental commitments at December 31, 2018 (in millions of dollars):



Year Ended December 31,	Finance Leases			Operating Leases
2019	$	1.7		$	6.1
2020	1.4			3.7
2021	1.2			2.8
2022	1.1			2.4
2023	1.0			2.2
2024 and thereafter	1.8			20.8
Total minimum lease payments	$	8.2		$	38.0

Less: interest	(1.2		)
Present value¹	$	7.0

_________________________


^1.	Of the $7.0 million in finance lease obligations as of December 31, 2018, $1.4 million was included in Other accrued liabilities and $5.6 million was included in Long-term liabilities. Assets recorded under finance leases and the accumulated amortization thereon were $8.3 million and $1.3 million, respectively, as of December 31, 2018.

4. Employee Benefits

Pension and Similar Benefit Plans. We provide contributions to: (i) defined contribution 401(k) savings plans for salaried employees and certain hourly employees; (ii) a non-qualified, unfunded, unsecured plan of deferred compensation (see "Deferred Compensation Plan" below); (iii) multi-employer pension plans sponsored by the United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL-CIO, CLC, the International Association of Machinists and certain other unions at certain of our production facilities; and (iv) a defined benefit pension plan for salaried employees at our London, Ontario (Canada) facility.

Deferred Compensation Plan. We have a non-qualified, unfunded, unsecured plan of deferred compensation for certain employees who would otherwise suffer a loss of benefits under our defined contribution plan as a result of the limitations imposed by the Internal Revenue Code of 1986. Despite the plan being an unfunded plan, we make an annual contribution to a rabbi trust to fulfill future funding obligations as contemplated by the terms of the plan. The assets in the trust are held in various investment funds at certain registered investment companies and are accounted for as equity investments with changes in fair value recorded within Other (expense) income, net (see Note 9). Assets of our deferred compensation plan are classified within Level 2 of the fair value hierarchy and are measured and recorded at fair value based on their quoted market prices. The fair value of these assets at June 30, 2019 and December 31, 2018 was $12.0 million and $10.5 million, respectively, and are included in Other assets. Offsetting liabilities relating to the deferred compensation plan are included in Other accrued liabilities and Long-term liabilities.

Salaried VEBA Postretirement Obligation. Certain retirees who retired prior to 2004 and certain employees who were hired prior to February 2002 and have subsequently retired or will retire with the requisite age and service, along with their surviving spouses and eligible dependents, are eligible to participate in a voluntary employees' beneficiary association ("VEBA") that provides healthcare cost, medical cost and long-term care insurance cost reimbursement benefits ("Salaried VEBA"). We have an ongoing obligation with no express termination date to make annual variable cash contributions up to a maximum of $2.9 million to the Salaried VEBA. We paid $2.1 million with respect to 2018 during the quarter ended March 31, 2019. We account for the Salaried VEBA as a defined benefit plan in our financial statements.

Union VEBA Postretirement Obligation. Certain other eligible retirees represented by certain unions, along with their surviving spouses and eligible dependents, participate in a separate VEBA ("Union VEBA"). During the first quarter of 2018, we made a $12.8 million cash contribution to the Union VEBA with respect to the nine months ended September 30, 2017. This was our final contribution. We have no ongoing obligation to make further contributions to the Union VEBA.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

Fair Value of Plan Assets. The plan assets of our Canadian pension plan and the Salaried VEBA are measured annually on December 31 and reflected in our Consolidated Balance Sheets at fair value. In determining the fair value of the plan assets at an annual period end, we utilize primarily the results of valuations supplied by the investment advisors responsible for managing the assets of each plan, which we independently review for reasonableness.

The following tables present the total expense related to all benefit plans for the periods presented (in millions of dollars):



	Quarter Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Defined contribution plans¹	$	1.7	$	1.3	$	5.6	$	5.6
Deferred compensation plan¹	0.3		0.9		1.0		1.0
Multiemployer pension plans¹