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Note 17 - Stock-based Compensation Plan (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

		Three months ended								Six months ended
		June 30,								June 30,
		2026				2025				2026				2025
Huntsman Corporation compensation cost		$	7			$	7			$	16			$	16
Huntsman International compensation cost			7				7				15				14

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

										Weighted
						Weighted				average
						average				remaining				Aggregate
						exercise				contractual				intrinsic
Option awards		Shares				price				term				value
		(in thousands)								(years)				(in millions)
Outstanding at January 1, 2026			2,030			$	22.42
Exercised			(241	)			8.86
Forfeited			(45	)			19.93
Outstanding and exercisable at June 30, 2026			1,744				24.37				2.6			$	—

Schedule of Nonvested Share Activity [Table Text Block]

		Equity awards								Liability awards
						Weighted								Weighted
						average								average
						grant-date								grant-date
		Shares				fair value				Shares				fair value
		(in thousands)								(in thousands)
Nonvested at January 1, 2026			3,177			$	24.63				295			$	20.09
Granted			2,153				15.27				297				13.27
Vested			(1,070	)	(1)(2)		29.97				(130	)			22.07
Forfeited			(61	)			17.57				(6	)			15.08
Nonvested at June 30, 2026			4,199				18.57				456				15.15

X

- Definition

Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

+ References

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-SubTopic 10
-Section 50
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-Subparagraph (h)(1)
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- Definition

Tabular disclosure of the changes in outstanding nonvested shares.

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