European tax, customs and anti-fraud commissioner Algirdas Semeta asked Chinese officials at a meeting in Shanghai to fully put into action a plan the two sides signed last year.
"Generally speaking, we developed a very good framework but the implementation of this framework is not sufficient," Semeta told AFP before he addressed the joint customs cooperation committee meeting.
China is the EU's largest source of imports and the main source of counterfeit goods across its 27 countries last year, with 64 per cent of seized articles coming from the Asian giant, according to EU figures.
Broken down by industry, China was the source of more than 90 per cent of counterfeit shoes, 81 per cent of electronics and computer equipment and 72.5 per cent of its fake branded clothes and accessories.
As part of an agreement on intellectual property protection, a network was established last year for European and Chinese customs officials to share real-time information to help intercept shipments and target counterfeiting rings."We presented 55 cases to Chinese authorities while we received just five cases from Chinese authorities. This means the implementation of the programme requires additional effort," Semeta said.