In Malaysia, most of the industry zoning (factory & industrial land) fall under Light and Medium Industry Category. 

Medium polluting type industries or activities are characterized by: 

• Moderate pollution potential and risk due to fire, explosion, and/or hazardous chemicals
• Moderate air pollution potential (including odour) from low levels of residual air pollutants 
• Moderate potential for emission of greenhouse gases and/or ozone depleting substances 
• Moderate noise and/or vibration with no significant residual impact 
• Generate significant quantities of wastewater containing low levels of residual pollutants
• Generate scheduled wastes which are mostly readily treated or managed within prescribed

Facilities

The difference of Small, Medium and Heavy Industries are more to the nature of manufacturing/production/operation activities itself.

We may assist you to check with Department of Environment (DOE) if you are not so sure whether your manufacturing/business activities falls under Light Industry, Medium Industry or Heavy Industry.

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