Blackhem Group of Companies


   Rubber Processing Oil
   Base Oil




Bitumen is the raw material for the construction of roads, pipe coatings and water proofing materials.

Generic grades of bitumen distributed:
  1. Penetration 60/70
  2. Penetration 80/100

Polymer Modified Asphalt (PMA) – under our house brand “DOROtech®”

In collaboration and with support from our counterpart in Japan, we ventured into the production of higher value added bitumen products under our registered brand name of “Dorotech”.

“DOROtech®” is a niche product of asphalt with the introduction of polymer and other additives. This product provides higher quality road surfacing plus longer lasting performance and lower maintenance.

Since this product’s entry in the market, we have produced and supplied more variety of products under the “DOROtech®” brand with the following trademarks:

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