07:20 AM EDT, 03/11/2026 (MT Newswires) -- NGEx Minerals ( NGXXF ) Wednesday said Lundin Mining ( LUNMF ) will be its new minority partner in the Los Helados Project in Chile, subject to the closing of its transaction with JX Advanced Metals.

Lundin Mining ( LUNMF ) will acquire JX's 30.9% interest in the Los Helados joint exploration agreement (JEA).

Los Helados, one of the largest undeveloped copper-gold resources in the world, is 17 kilometres from Lundin's Caserones and 10 kilometres from Vicuna's Josemaria project which is under development in Argentina. Lundin Mining ( LUNMF ) and BHP each hold a 50% interest in Vicuna.

"We are pleased to have Lundin Mining ( LUNMF ) as our new minority partner at Los Helados and feel that this partnership has the potential to open up new options to move the Los Helados Project forward towards eventual development. The Los Helados resource and its copper, gold, and silver grades are higher than what is currently being mined at Caserones and the proximity of the operating infrastructure at Caserones provides potential synergies and development options to feed mineralization from Los Helados through the mill at Caserones," chief executive Wojtek Wodzicki said.

NGEx is the majority partner and operator of the JEA.