Exhibit 31.1
CERTIFICATION
I, Martin Kremenstein, certify that:
| 1. | I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of PowerShares DB Base Metals Fund, a series of PowerShares DB Multi-Sector Commodity Trust; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
| Dated: March 29, 2013 | /s/ Martin Kremenstein | |
| Martin Kremenstein | ||
| Chief Executive Officer |
