Sales of power banks without a China Compulsory Certification (CCC) mark are prohibited in Shenzhen’s Huaqiangbei, one of the world’s largest electronics markets. The national ban went into effect Aug. 1 of last year, according to the Shenzhen Administration for Market Regulation. Merchants in the market are now taking proactive steps to double-check their inventories, ensuring every product meets the CCC requirement. Some vendors have confirmed that they recently received guidance from local authorities that reiterated the ban on uncertified power banks