BEIJING, China (AFP) — China warned on Wednesday of potential retaliation over a French law aimed at curbing the rise of fast fashion, slamming the regulation as “discriminatory” and in violation of trade principles.

The bill, passed by France’s parliament late last month and due to impose per-item fees from September 1, targets major Asian e-commerce platforms including Shein, Temu and AliExpress.

The “ultra-fast fashion” companies are known for selling large volumes of lower-quality clothing at rock-bottom prices, also contributing to pollution from the textile industry, a major emitter of greenhouse gas.