Exhibit 99.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement on Form F-3 (No. 333-222005) and the Registration Statements on Form S-8 (No. 333-126715, 333-141397, 333-171206, 333-192821, 333-200953, 333-215273, 333-222813, and 333-228137) of Royal Dutch Shell plc of our reports dated March 11, 2020, with respect to the Consolidated Financial Statements and the effectiveness of internal control over financial reporting of Royal Dutch Shell plc, included in the Form 20-F for the year ended December 31, 2019.

/s/ Ernst & Young LLP

Ernst & Young LLP

London, United Kingdom

March 11, 2020

ADDITIONAL INFORMATIONSHELL FORM 20-F 2019 E 1