Exhibit 15.1

Our ref KKZ/788453-000001/28641347v1

ECARX Holdings Inc.

PO Box 309

Ugland House

Grand Cayman

KY1-1104

Cayman Islands

3 April 2024

Dear Sir or Madam

ECARX Holdings Inc.

We have acted as legal advisers as to the laws of the Cayman Islands to ECARX Holdings Inc., an exempted company with limited liability incorporated in the Cayman Islands (the “Company”), in connection with the filing by the Company with the United States Securities and Exchange Commission (the “SEC”) of an annual report on Form 20-F for the year ended 31 December 2023 (the “Annual Report”).

We hereby consent to the reference to our firm under the heading Item 10. Additional Information—E. Taxation—Cayman Islands Taxation in the Annual Report, and we further consent to the incorporation by reference of the summary of our opinions under this heading into the Company’s registration statement on Form S-8 (File No. 333-269756) that was filed on 14 February 2023, pertaining to the Company’s 2021 Option Incentive Plan and the Company's 2022 Share Incentive Plan.

We also consent to the filing with the SEC of this consent letter as an exhibit to the Annual Report. In giving such consent, we do not thereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, or under the Securities Exchange Act of 1934, in each case, as amended, or the regulations promulgated thereunder.

Yours faithfully

/s/ Maples and Calder (Hong Kong) LLP

Maples and Calder (Hong Kong) LLP