Exhibit 99.03

Quarterly Non-GAAP Earnings (Loss) Before Interest and Taxes Reconciliations
	2018
(Dollars in millions, unaudited)	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Twelve Months
Additives & Functional Products
Earnings before interest and taxes	$	176		$	192		$	186		$	85		$	639
Asset impairments and restructuring charges, net	—			—			—			38			38
Net coal gasification incident (insurance) costs	2			(4		)	(4		)	—			(6		)
Excluding non-core and unusual items	178			188			182			123			671
Advanced Materials
Earnings before interest and taxes	135			150			153			71			509
Asset impairments and restructuring charges, net	—			—			—			1			1
Net coal gasification incident (insurance) costs	3			(6		)	(6		)	—			(9		)
Excluding non-core and unusual items	138			144			147			72			501
Chemical Intermediates
Earnings before interest and taxes	70			85			109			44			308
Net coal gasification incident (insurance) costs	19			(21		)	(30		)	2			(30		)
Excluding unusual item	89			64			79			46			278
Fibers
Earnings before interest and taxes	43			83			84			47			257
Net coal gasification incident (insurance) costs	13			(25		)	(27		)	1			(38		)
Excluding unusual item	56			58			57			48			219
Other
Loss before interest and taxes	(15		)	(19		)	(15		)	(112		)	(161		)
Mark-to-market pension and other postretirement benefit plans (gain) loss, net	—			—			—			99			99
Asset impairments and restructuring charges, net	2			4			—			—			6
Costs resulting from tax law changes and outside-U.S. entity reorganizations	11			8			1			—			20
Excluding non-core and unusual items	(2		)	(7		)	(14		)	(13		)	(36		)
Total Eastman Chemical Company
Earnings before interest and taxes	409			491			517			135			1,552
Mark-to-market pension and other postretirement benefit plans (gain) loss, net	—			—			—			99			99
Asset impairments and restructuring charges, net	2			4			—			39			45
Net coal gasification incident (insurance) costs	37			(56		)	(67		)	3			(83		)
Costs resulting from tax law changes and outside-U.S. entity reorganizations	11			8			1			—			20
Total earnings before interest and taxes excluding non-core and unusual items	$	459		$	447		$	451		$	276		$	1,633

Exhibit 99.03

Quarterly Non-GAAP Earnings (Loss) Before Interest and Taxes Reconciliations (continued)
	2017
(Dollars in millions, unaudited)	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Twelve Months
Additives & Functional Products
Earnings before interest and taxes	$	153		$	161		$	189		$	150		$	653
Asset impairments and restructuring charges, net	—			—			—			3			3
Net coal gasification incident (insurance) costs	—			—			—			8			8
Gain from sale of business	—			—			(3		)	—			(3		)
Excluding non-core and unusual items	153			161			186			161			661
Advanced Materials
Earnings before interest and taxes	121			137			142			83			483
Net coal gasification incident (insurance) costs	—			—			—			11			11
Excluding unusual item	121			137			142			94			494
Chemical Intermediates
Earnings before interest and taxes	82			83			81			9			255
Net coal gasification incident (insurance) costs	—			—			—			44			44
Excluding unusual item	82			83			81			53			299
Fibers
Earnings before interest and taxes	52			56			68			5			181
Net coal gasification incident (insurance) costs	—			—			—			49			49
Excluding unusual item	52			56			68			54			230
Other
Loss before interest and taxes	(7		)	(17		)	(16		)	(2		)	(42		)
Mark-to-market pension and other postretirement benefit plans (gain) loss, net	—			—			—			(21		)	(21		)
Cost of disposition of claims against discontinued Solutia operations	—			—			—			9			9
Asset impairments and restructuring charges, net	—			—			—			5			5
Excluding non-core and unusual items	(7		)	(17		)	(16		)	(9		)	(49		)
Total Eastman Chemical Company
Earnings before interest and taxes	401			420			464			245			1,530
Mark-to-market pension and other postretirement benefit plans (gain) loss, net	—			—			—			(21		)	(21		)
Cost of disposition of claims against discontinued Solutia operations	—			—			—			9			9
Gain from sale of business	—			—			(3		)	—			(3		)
Asset impairments and restructuring charges, net	—			—			—			8			8
Net coal gasification incident (insurance) costs	—			—			—			112			112
Total earnings before interest and taxes excluding non-core and unusual items	$	401		$	420		$	461		$	353		$	1,635

Exhibit 99.03

Quarterly Non-GAAP Earnings (Loss) Before Interest and Taxes Reconciliations (continued)
	2016
(Dollars in millions, unaudited)	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Twelve Months
Additives & Functional Products
Earnings before interest and taxes	$	154		$	171		$	162		$	120		$	607
Asset impairments and restructuring charges, net	(2		)	—			—			12			10
Excluding non-core item	152			171			162			132			617
Advanced Materials
Earnings before interest and taxes	108			132			141			91			472
Chemical Intermediates
Earnings before interest and taxes	67			15			39			50			171
Fibers
Earnings before interest and taxes	85			90			80			76			331
Gain from sale of business	—			(17		)	—			—			(17		)
Excluding non-core item	85			73			80			76			314
Other
Loss before interest and taxes	(27		)	(12		)	(69		)	(84		)	(192		)
Mark-to-market pension and other postretirement benefit plans (gain) loss, net	—			—			30			67			97
Cost of disposition of claims against discontinued Solutia operations	5			—			—			—			5
Asset impairments and restructuring charges, net	—			—			30			5			35
Acquisition integration and transaction costs	9			—			—			—			9
Excluding non-core items	(13		)	(12		)	(9		)	(12		)	(46		)
Total Eastman Chemical Company
Earnings before interest and taxes	387			396			353			253			1,389
Mark-to-market pension and other postretirement benefit plans (gain) loss, net	—			—			30			67			97
Cost of disposition of claims against discontinued Solutia operations	5			—			—			—			5
Gain from sale of business	—			(17		)	—			—			(17		)
Asset impairments and restructuring charges, net	(2		)	—			30			17			45
Acquisition integration and transaction costs	9			—			—			—			9
Total earnings before interest and taxes excluding non-core items	$	399		$	379		$	413		$	337		$	1,528