RoHS (Restriction of Hazardous Substances) is a European Union directive that restricts the use of specific hazardous materials in electrical and electronic equipment (EEE). First introduced in 2002 as Directive 2002/95/EC, it has evolved through RoHS 2 (2011/65/EU) and RoHS 3 (2015/863/EU) to become one of the most influential environmental regulations affecting global electronics trade.
For Southeast Asian manufacturers looking to sell on Alibaba.com and access international markets, RoHS compliance is no longer optional—it's a fundamental market access requirement. The regulation affects all electrical and electronic equipment across 10 major product categories, from consumer electronics like smartphones and laptops to industrial machinery and medical devices [1].
The core purpose of RoHS is to reduce the environmental and health impacts of electronic waste by limiting the presence of hazardous substances that can leach into soil and groundwater when products are disposed of. For B2B exporters, compliance demonstrates corporate responsibility and opens doors to markets with strict environmental standards, particularly the European Union where RoHS originated.
The 10 Restricted Substances Under RoHS 3 (2015/863/EU)
| Substance | Chemical Symbol | Maximum Concentration | Common Applications | Health/Environmental Impact |
|---|---|---|---|---|
| Lead | Pb | 0.1% (1000 ppm) | Solder, connectors, batteries, glass | Neurotoxin, affects brain development |
| Mercury | Hg | 0.1% (1000 ppm) | Switches, relays, lamps, batteries | Neurotoxin, bioaccumulates in food chain |
| Cadmium | Cd | 0.01% (100 ppm) | Batteries, pigments, coatings | Carcinogen, kidney damage |
| Hexavalent Chromium | Cr(VI) | 0.1% (1000 ppm) | Metal coatings, corrosion protection | Carcinogen, skin ulcers |
| Polybrominated Biphenyls | PBB | 0.1% (1000 ppm) | Flame retardants in plastics | Endocrine disruptor |
| Polybrominated Diphenyl Ethers | PBDE | 0.1% (1000 ppm) | Flame retardants in circuit boards | Endocrine disruptor, neurotoxicity |
| Bis(2-ethylhexyl) phthalate | DEHP | 0.1% (1000 ppm) | Plasticizers in cables, connectors | Reproductive toxicity |
| Benzyl butyl phthalate | BBP | 0.1% (1000 ppm) | Plasticizers in vinyl products | Reproductive toxicity |
| Dibutyl phthalate | DBP | 0.1% (1000 ppm) | Plasticizers, adhesives | Reproductive toxicity |
| Diisobutyl phthalate | DIBP | 0.1% (1000 ppm) | Plasticizers, coatings | Reproductive toxicity |
Understanding these substance limits is the foundation of RoHS compliance. The concentration limits apply to each homogeneous material within a product—not the product as a whole. This means a single screw, coating, or plastic component must individually meet the requirements. For manufacturers, this requires detailed material tracking throughout the supply chain.

