LME list ‘MCB-MJ’ Grade A Copper Brand

On 8th December 2025, the LME listed ‘ MCB-MJ’ brand under its Grade A Copper contract:

‘Further to notice 25/025, please note that the Exchange has approved the listing of MCB-MJ brand for delivery against the LME’s Copper – Grade A contract with immediate effect.

In line with notice 25/141, while the brand is listed immediately, warrants can only be issued with effect from 15 December 2025.

For clarity, Warehouse Companies holding metal pertaining to this brand are obligated to include it in their off-warrant stock reports with immediate effect..

Brand details

Brand: MCB-MJ

Producer: Marcobre S.A.C, Jr. Giovanni B. Lorenzo Bernini 149, Oficina 301, San Borja, Lima, Peru

Plant: Mina Justa, San Juan de Marcona, Nazca, Ica, Peru

Annual plant capacity: 58,000mt

Cathode dimensions: 1100mm x 1010mm x 3.6mm approx.

Piece weight: 41kgs approx.

Bundle weight: 2300kgs approx

LMEsword code: MCBMJ

Fiorella Polifroni
Brand Operations Assistant – Sustainability & Physical Market Operations

cc: Board directors, Copper committee’