
EASTERN DIAMOND / BASE OILS · BITUMEN · PETROCHEMICALS
GLOBAL BASE OIL & BITUMEN SUPPLY
Materials that move industry. Specifications that build confidence.
EASTERN DIAMOND / MATERIALS IN MOTION
At the heart ofevery industry.
From the first specification to the final destination. Bitumen, base oils and industrial materials—sourced around your requirements.
Grades & applications
Base oils
Group I · Group II · Group IIILubricant formulation · Industrial blending
↗Bitumen
60/70 · 80/100 · VG 30 · VG 40 · 85/25
Base oils
Group I · Group II · Group III
Petrochemicals
Methanol · Urea · PE · PP
Industrial equipment
Valves · Pumps · Instrumentation
EASTERN DIAMOND
A focused portfolio. A wider perspective.
Availability, specifications and commercial terms are confirmed in a written quotation.
Bitumen
From road construction to industrial waterproofing. A specification-led approach to every cargo.
Base oils
Base stocks for lubricant blending, selected around your viscosity and formulation requirements.
Petrochemicals
Industrial feedstocks and polymers, with a clear commercial and documentation process.
Industrial equipment
Technical procurement for refinery and industrial maintenance requirements.
NATIONWIDE SUPPLY
Your province.Your requirements.
Select a destination anywhere in Iran. Build a focused request for materials and let our team review sourcing and transport.
Choose a province on the map or from the list.
Enquiries accepted for all 31 provinces. Stock, freight and delivery dates are confirmed in our written offer—not by this map.
ANZALI / INTERNATIONAL TRADEAlmas Sharghi Rah Roshan Anzali
Industrial knowledge. Commercial discipline.
Eastern Diamond is the commercial identity of Almas Sharghi Rah Roshan Anzali. We connect bitumen, base oils, petrochemicals and industrial equipment with clearly defined procurement requirements. Our work brings technical specifications, supplier coordination and delivery planning into one accountable commercial process.
About us →BUYER’S LIBRARY
The material matters. So does the detail.

Base oils, explained.
Compare API Groups I–V, understand SN grades and build a specification that fits your formulation.
Read the guide ↗
Specify bitumen with confidence.
Penetration, viscosity and oxidized grades describe different properties. Match the specification to the project—not just the grade name.
Read the guide ↗Request a freight quotation
Tell us what is moving, where it starts and where it needs to arrive. Our team will review the shipment and prepare a quotation—no automatic or indicative prices.
EASTERN DIAMOND / Contract drafting
From a clear specification to clear commercial terms.
Prepare an editable supply-contract working draft: parties, material, quantity, quality, delivery, payment and points for legal review.
Prepare a working draft ↗- 01 / SPECIFICATION
- 02 / DELIVERY & PAYMENT
- 03 / REVIEW & NEGOTIATION
01 — 04
Every detail, accounted for.
- 01
Define requirements
Application, grade, volume and destination define the enquiry.
- 02
Review the source
The proposed source and supporting documents are reviewed against your requirements.
- 03
Agree commercial terms
Price, payment and delivery terms are set out in a written offer.
- 04
Coordinate delivery
Packing, loading and transport milestones follow the agreed scope.