Gold Production

Production of gold at Sepon commenced in 2003 and ceased in 2013 due to price and other factors. In June 2020, Sepon recommenced gold production, marking the beginning of a New Gold Era for Sepon mine.

In August 2020, Sepon commissioned a new plant and commenced processing primary gold ore. These changes are milestone in Sepon’s transition from copper to a gold focused operation. Resumption of gold production will extend Sepon’s mine life for at least ten years. LXML will continue to generate employment, revenue, and improved livelihoods for host communities.  LXML is continuing to contribute to the socio-economic development of Lao PDR through projected production and investment in exploration and other growth projects as a key development partner.

Crane operator at copper plant

Copper Production

Since copper production commenced in 2005, Sepon produced over 1 million tonnes of copper cathode. Sepon produces copper cathodes using a whole-of-ore leach, sovent extract and electrowinning (SX-EW) process. Copper Cathodes are then transported via road and sea to manufacturers of cable, wire and tube in Asia.

In quarter 3, 2020, Sepon transitioned from copper to a gold focused operation. Copper production is continuing at Sepon through the heap leach pilot program. Sepon expects to produce around 45,000 tonnes of copper cathode in 2020.

Crane operator at copper plant

Heap Leach Pilot Program

In mid-August, we commissioned our Pilot Heap Leach Facility, another project under budget and on time, and another significant milestone for LXML. This Pilot Heap Leach Facility is a first for Sepon and is part of our study into the potential for continuing copper production after our transition to gold production. Heap leach is a lower cost method that will allow Sepon to process the significant low-grade primary copper resource that would otherwise be uneconomical to process. 

The heap leach pilot facility has a total capacity of 900,000 tonnes and is set to operate as a dynamic pad for 18 to 24 months. Currently, 400,000 tonnes of ore will contribute 3,000 copper tonnes. 

Crane operator at copper plant

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