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As a creative and agile Iranian holding in the bitumen industry, DEJPA is among the first three producers in Iran with an export market, focusing on the field of bitumen and mulch. It is also known as a leading company in the field of technical and engineering services in the oil refining, bitumen and mulch industry, and it has made successful entries in the field of oil refining as business opportunities for the coming years.
Taking the lead in gaining market share in the current chain through increasing productivity, intelligence and innovation in supply, production and sales methods, as well as entering the oil refining chain in order to learn and build strategic capacity for the future of business.
40 YEARS OF COUNTINUES ACTIVITY IN BITUMEN PRODUCTION.
 
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Dejpa Bitumen

Use of Petroleum Mulches for Erosion Control and Vegetation Recovery | Technical Publication

A comprehensive review on applying petroleum mulches for soil erosion control and vegetation enhancement in arid regions. Field experiences, environmental challenges, and optimization strategies discussed.
April 28 2025 More
Dejpa Bitumen

Preliminary Report on Afforestation in Iran | Early Assessment of Projects in Arid Regions

A specialized review of early afforestation projects in Iran’s dry and semi-dry regions. Focus on species selection, planting strategies, and overcoming climatic constraints to establish sustainable vegetation cover.

April 28 2025 More
Dejpa Bitumen

Soil Surface Application of Asphalt for Afforestation in Semi-Arid Zones of Iran


This innovative study demonstrates how surface asphalt application to soil can significantly enhance water harvesting and tree growth in drylands.
The technique shows substantial promise in reducing irrigation needs, supporting afforestation efforts, and combating desertification across Iran’s semi-arid regions.
April 28 2025 More