Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Amendment No. 2 to Form S-4 of our report dated March 30, 2021, relating to the financial statements of Ivanhoe Capital Acquisition Corp., which is contained in the Prospectus. We also consent to the reference to our Firm under the caption “Experts” in the Prospectus.

/s/ WithumSmith+Brown, PC

New York, New York

October 22, 2021