LyondellBasell BDO and Derivatives Hike

December 1, 2017

Subject: Lyondell Chemical Company; 1, 4 Butanediol and Derivatives Price Increase

Dear Valued Customer,

Effective January 1, 2018 or as contracts allow, Lyondell Chemical Company will increase off-list
prices for 1,4 Butanediol and Derivatives Products as shown below.

Chemical Name

Off-List
Price Increase
1,4 Butanediol (BDO) $0.05/LB
2-Methyl- 1,3-Propanediol (MP Diol) $0.05/LB
N-Methyl-2-Pyrrolidone (NMP)-Industrial Grade $0.06/LB
N-Methyl-2-Pyrrolidone (NMP)-Electronic Grade $0.06/LB
Tetrahydrofuran (THF) $0.04/LB
Polytetramethylene Glycol, PolyMEG® P1000 $0.06/LB
Polytetramethylene Glycol, PolyMEG® P2000 $0.06/LB
Polytetramethylene Glycol, PolyMEG® 650 $0.06/LB

Our acceptance of orders submitted prior to the increase date will be subject to our ability to
supply. We appreciate the confidence you have placed in us as a supplier, and we look forward
to our continuing business relationship. As always, your account manager is available to work
with you or answer any questions you may have.