Believe in Progress,
Achieve Success

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.
 
Latest blogs
more blogs
Dejpa Bitumen

Shifting Sands, Oil Mulch Technology, and Its Consequences


This in-depth interview explores the origin and development of oil mulch technology in Iran, as recounted by its pioneer Engineer Seyyed Mehdi Mahdavi and field expert Engineer Ghamreza Ahannin. Developed in the 1960s to combat desertification and control shifting sands, this innovative petroleum-based method was successfully deployed across Iran, including Khuzestan and Boein Zahra. The article discusses technical implementation, challenges, environmental impacts, and the continued relevance of this technology in addressing dust storms and land degradation.

May 08 2025 More
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