Exhibit 23.3

Consent of Independent Auditors

We consent to the use of our report dated February 9, 2018, relating to the financial statements of National Methanol Company (Ibn Sina) appearing in Celanese Corporation’s Annual Report on Form 10-K for the year ended December 31, 2017.

For BDO Dr. Mohamed Al-Amri & Co.

/s/ Gihad M. Al-Amri & Co.

Certified Public Accountant

Registration No. 362

Dammam, Saudi Arabia

April 24, 2018