Proposal to amend coke 62% CSR, fob China specification

Fastmarkets proposes to amend the specification of its Chinese metallurgical coke export price assessment.

The coke strength after reaction (CSR) for the price will change to 65% from 62% to align more closely with the most common products traded in the spot market.

The newly proposed specifications are as follows:
MB-COA-0006 – Coke 65% CSR, fob China, $/tonne
Quality: 30-90mm; range 25-100mm
CSR: 65%; minimum 63%
Volatile matter: 1.5%; range 1-1.5%
Ash: 12.5%; range 11-13.5%
Sulphur: 0.65%; range 0.4-0.8%
Phosphorus: 0.035%
Cargo type: Non-blended
Basis: fob Tianjin
Quantity: 35,000 tonnes; minimum 5,000 tonnes
Laycan: Within 45 days
Publication: Weekly, Tuesday, at 7pm Singapore time

The consultation period for this proposed amendment starts on May 19 and will end on June 16. The amendment will then take place, subject to market feedback, on June 20.

To provide feedback on this weekly assessment, or if you would like to provide price information by becoming a data submitter to this assessment, please contact Olivia Zhang/Paul Lim by email at: pricing@fastmarkets.com. Please add the subject heading “FAO: Olivia Zhang/Paul Lim, re: amendment to the specifications of Chinese metallurgical coke export price assessment.”

To see all Fastmarkets’ pricing methodology and specification documents go https://www.fastmarkets.com/methodology

What to read next
Fastmarkets launched three new rare earth prices on Thursday March 19 to cover the global market outside of China to improve transparency in the rare earths magnet supply chain.
Fastmarkets has corrected its copper concentrates treatment and refinement charge indices, which were published incorrectly on February 27 2026 due to a backend calculation error. Fastmarkets has also corrected the indices' rationale and all related inferred indices.
The following India steel prices were published on March 20 after a one-day delay: MB-STE-0434 Steel hot-dipped galvanized coil domestic, ex-whse India, rupees/tonneMB-STE-0435 Steel cold-rolled coil domestic, ex-whse India, rupees/tonneMB-STE-0436 Steel hot-rolled coil domestic, ex-whse India, rupees/tonneMB-STE-0437 Steel heavy plate domestic, ex-whse India, rupees/tonneMB-STE-0439 Steel heavy plate 12-40mm export, fob main port India, $/tonneMB-STE-0440 Steel billet export, fob main port India, […]
Fastmarkets is amending its pricing schedule for Egyptian steel semis and longs for the week of March 12-19 2026, owing to the holiday declared for Eid al-Fitr.
The following prices were affected:MB-MAG-0012 Magnesia, European calcined, agricultural, cif Europe, €/tonne MB-MAG-0013 Magnesite, Greek, raw, max 3.5% SiO2, fob East Mediterranean, €/tonne MB-MAG-0018 Magnesia, dead burned, 95% MgO, fob Europe, $/tonne MB-MAG-0019 Magnesia, fused, 97% MgO, cif Europe, $/tonne MB-MAG-0020 Magnesia, dead burned, 90% MgO, lump, cif Europe, $/tonne MB-MAG-0021 Magnesia, dead burned, 97% MgO, lump, cif Europe, $/tonne This […]
The publication of Fastmarkets’ AG-PLM-0019 Refined bleached deodorised (RBD) palm olein assessment for March 16 was delayed due to a reporter error. Fastmarkets’ pricing database has been updated.