Proposal to amend publication time of inferred China cobalt hydroxide price assessment

Fastmarkets proposes to amend the publication time of its inferred China cobalt hydroxide price assessment from 3:00 pm London time to 3:30 pm.

The proposed change to the timing of the publication of the cobalt hydroxide, min 30% Co, inferred, China, will give the calculation more time to align with the cobalt standard grade, in-whs Rotterdam, which is published daily at 3:00pm London time.

The daily cobalt hydroxide inferred price is calculated by multiplying the low-end of the cobalt standard grade, in-whs Rotterdam price assessment by the prevailing midpoint of Fastmarkets’ cobalt hydroxide payable (percentage) indicator, min 30% Co, cif China.

The consultation period for this proposed amendment starts from Friday April 1 and will end on May 2. The amendment will then take place, subject to market feedback, on May 5.

To provide feedback on this price or if you would like to provide price information by becoming a data submitter to this price, please contact Justin Yang by email at: pricing@fastmarkets.com. Please add the subject heading ‘FAO: Justin Yang, re: cobalt hydroxide, min 30% Co, inferred, China.’

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

What to read next
Fastmarkets has corrected its FP-LBR-1245 Kiln-dried eastern spruce-pine-fir stud 2x4 9-ft PET delivered Boston price, which was published incorrectly on Tuesday June 9.
Fastmarkets has corrected the rationale for its MB-MNO-0002 manganese ore semi carbonate index, 36.5% Mn, fob Port Elizabeth, which was published incorrectly on Friday June 5 due to incorrect source data.
Fastmarkets invited feedback from the industry on the pricing methodology for PIX Packaging Europe indices via an open consultation process between May 7 and June 8, 2026. This consultation was done as part of our published annual methodology review process.
The MB-MNO-0003 Manganese ore semi carbonate index, 36.5% Mn, cif Tianjin, $ per dmtu was published in error as $4.75 per dry metric tonne unit. It has been corrected to $4.74 per dmtu. The rationale for the same index on the same date was also updated to reflect this change. It erroneously stated that “Fastmarkets’ manganese ore semi-carbonate […]
The publication of Fastmarkets’ price assessments for MB-FEO-0004 molybdenum, MB drummed molybdic oxide Mo, in-whs Busan; for MB-FEO-0003 molybdenum, drummed molybdic oxide, 57% Mo min, in-whs Rotterdam; and for MB-FEO-0001 ferro-molybdenum, 65% Mo min, in-whs Rotterdam, was delayed on Monday June 8 owing to slow data processing.
Fastmarkets has corrected the rationale for its MB-NI-0247 Nickel sulfate premium, cif Japan and Korea, which was published incorrectly on Friday June 5 due to a reporter error.