Three-Dimensional Engineering: Announcement Regarding the Holding Subsidiary Receiving a Patent Certificate

Announcement Regarding the Patent Certificate Obtained by a Wholly-Owned Subsidiary Shandong Sanwei Petrochemical Engineering Co., Ltd. (hereinafter referred to as the "Company") recently received one Invention Patent Certificate issued by the National Intellectual Property Administration of the People's Republic of China, awarded to its wholly-owned subsidiary, Qingdao Lianxin Catalytic Materials Co., Ltd.

Release date:

2019-01-17

Security Code: 002469 Security Abbreviation: Sanwei Engineering Announcement No.: 2019-002

Shandong Sanwei Petrochemical Engineering Co., Ltd.

Announcement Regarding the Patent Certificate Obtained by a Wholly-Owned Subsidiary Shandong Sanwei Petrochemical Engineering Co., Ltd. (hereinafter referred to as the "Company") is pleased to announce that its wholly-owned subsidiary, Qingdao Lianxin Catalytic Materials Co., Ltd., recently received one Invention Patent Certificate issued by the National Intellectual Property Administration of the People's Republic of China. The specific details are as follows:

Patent Number	Patent Name	Patent Type	Application Date	Validity Period	Certificate Number
ZL201610302576.2	A production process for producing natural gas via sulfur-resistant shift-methanation using a feed gas with high CO content.	Invention	2016-5-6	20 years	Number 3206158

The patent holder for the above-mentioned patents is Qingdao Lianxin Catalytic Materials Co., Ltd., a subsidiary controlled by the company. While obtaining these patents will not significantly impact the company's production and operations, it will help further enhance the company's intellectual property protection system, foster a sustainable innovation mechanism, and continuously strengthen the company's core competitiveness.

Announced hereby.

Shandong Sanwei Petrochemical Engineering Co., Ltd. Board of Directors, January 16, 2019

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