The Restriction of Hazardous Substances (RoHS) Directive is one of the most important environmental regulations affecting the global electronics industry. For Southeast Asian merchants looking to sell on Alibaba.com and access international markets, understanding RoHS compliance is not optional—it's a fundamental requirement for doing business with buyers in the European Union and many other regions.
RoHS Directive 2011/65/EU restricts the use of 10 specific hazardous substances in electrical and electronic equipment (EEE). The regulation applies to a wide range of products including consumer electronics, industrial equipment, medical devices, and automotive electronics. Products that fail to meet RoHS requirements cannot be legally sold in EU member states and may face similar restrictions in markets that have adopted aligned regulations.
| Substance | Chemical Symbol | Maximum Concentration Value (MCV) |
|---|---|---|
| Lead | Pb | 0.1% (1000 ppm) |
| Mercury | Hg | 0.1% (1000 ppm) |
| Cadmium | Cd | 0.01% (100 ppm) |
| Hexavalent Chromium | Cr(VI) | 0.1% (1000 ppm) |
| Polybrominated Biphenyls | PBB | 0.1% (1000 ppm) |
| Polybrominated Diphenyl Ethers | PBDE | 0.1% (1000 ppm) |
| Bis(2-ethylhexyl) phthalate | DEHP | 0.1% (1000 ppm) |
| Benzyl butyl phthalate | BBP | 0.1% (1000 ppm) |
| Dibutyl phthalate | DBP | 0.1% (1000 ppm) |
| Diisobutyl phthalate | DIBP | 0.1% (1000 ppm) |
The concentration limits are critical to understand. For most substances, the maximum allowed concentration is 0.1% by weight in homogeneous materials. However, cadmium has a stricter limit of 0.01%. A 'homogeneous material' means a material of uniform composition throughout that cannot be mechanically disjointed into different materials—essentially, it's a material that cannot be separated by mechanical actions like unscrewing, cutting, or grinding.
The RoHS directive applies to all electrical and electronic equipment put on the market in the EU. Compliance is mandatory for manufacturers, importers, and distributors. Non-compliance can result in products being withdrawn from the market, fines, and reputational damage [1].

