The head of China's quality watchdog met with Alibaba chairman Jack Ma on Monday as the e-commerce giant held its second meeting with regulatory authorities to discuss the crackdown on fake and shoddy products.

Zhi Shuping, minister of the General Administration of Quality Supervision, Inspection and Quarantine, said in the meeting that e-commerce platforms must take measures to tackle problems of counterfeit products and ensure the quality of products they sell, according to a statement released by the quality watchdog on Tuesday.

Ma met Zhang Mao, minister of the State Administration for Industry and Commerce, on Jan 30 after the market regulator blasted the company's failure to exert effective supervision on Taobao.com, China's largest consumer-to-consumer platform, which is owned by Alibaba.