Understanding Syrian Phosphate Grades: G3, G4, G6 Explained

Syrian phosphate rock from the Khneifess deposit is among the most sought-after phosphate sources in the Mediterranean basin. The deposit yields three primary grades — G3, G4, and G6 — each with distinct specifications and optimal applications.

Grade Overview

G3 — Premium Grade (BPL 65–67)

G3 is the highest grade from the Khneifess deposit, with a P₂O₅ concentration of 29.75–30.66%. Cadmium data is available on request; EU buyers should check it, with its unit and basis stated, against the requirements that apply to their own fertilising product. G3 is typically used for direct application phosphate rock and high-grade phosphoric acid production.

G4 — Standard Grade (BPL 62–64)

G4 is the workhorse grade for phosphoric acid-based fertilizer production. With P₂O₅ of 28.38–29.29% and moisture of 5–7% as received, it suits standard acid-plant feed. Cadmium data is available on request. G4 is the most traded Syrian phosphate grade and ships from Tartous, with the parcel size agreed per contract.

G6 — Standard Grade (BPL 62–64)

G6 shares the G4 chemical specification (BPL 62–64, P₂O₅ 28.38–29.29%) and is offered as a separate commercial grade, which allows different volumes, terms and delivery arrangements. Cadmium data is available on request. G6 is suitable for blending or for operations with wider tolerance specifications. The full typical analysis of each grade is published in the specification sheets on our documents page.

Key Takeaway

For EU buyers, cadmium requirements are set at the level of the finished fertilising product (for CE-marked phosphate fertilisers, 60 mg Cd/kg P₂O₅ under Regulation (EU) 2019/1009), so cadmium data for any grade should be requested and assessed case by case. The choice between G3, G4, and G6 ultimately depends on the buyer's specific P₂O₅ requirements, cadmium requirements, commercial terms and price sensitivity.