Exhibit 13.1
Certification by the Principal Executive Officer
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
In connection with the Annual Report of 21Vianet Group, Inc. (the “Company”) on Form 20-F for the year ended December 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Samuel Yuan-Ching Shen, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
| (1) | The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| (2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
Date: April 28, 2021
By: | /s/ Samuel Yuan-Ching Shen |
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Name: | Samuel Yuan-Ching Shen |
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Title: | Chief Executive Officer |