Huntsman Procurement S-4 Registration of securities issued in business combination transactions

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the use in this Registration Statement on Form S-4 of our report dated February 16, 2016 relating to the consolidated financial statements and the related financial statement schedule of Huntsman International LLC and subsidiaries, appearing in the Prospectus, which is part of this Registration Statement, and to the reference to us under the heading “Experts” in such Prospectus.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas

February 26, 2016