The American Petroleum Institute hereby grants to
ZHEJIANG VERVO VALVE CO., LTD. DBA VERVO VALVE GERMANY GMBH
Building 1, Plot 11, Wanyang Low Carbon Town
Liandu District
Lishui, Zhejiang
People's Republic of China

the right to use the Official API Monogram® on manufactured products under the conditions in the official publications of the American Petroleum Institute entitled API Spec Q1® and API-6D and in accordance with the provisions of the License Agreement.

In all cases where the Official API Monogram is applied, the API Monogram shall be used in conjunction with this certificate number: 6D-2251

The American Petroleum Institute reserves the right to revoke this authorization to use the Official API Monogram for any reason satisfactory to the Board of Directors of the American Petroleum Institute.

The scope of this license includes the following: Ball Valves, Check Valves, Gate Valves, Plug Valves

CMS Exclusions: No Exclusions Identified as Applicable

Effective Date: NOVEMBER 18, 2025
Expiration Date: OCTOBER 27, 2028