Sourcing Technical Precious Metals (STPM) is a company specialised in strategic sourcing and cost optimisation of high value precious metals and electrical contact materials for the railway, electrical power, green mobility, aerospace and defense industries.
We support industrial companies in the sourcing of contact materials and precious metals — critical components of electrical systems — by identifying strategic levers to sustainably optimise procurement costs.
ELECTRICAL CONTACT MATERIALS are components brazed on conductive supports such as copper, brass, bronze, or cupro-aluminium.
At the heart of electrical devices such as relays, circuit breakers, contactors, switchgear, switches they play a crucial role in ensuring the reliable performance of every system.
Their mission is to guarantee an optimal flow of electrical current between fixed and moving contacts, while offering exceptional resistance to mechanical and electrical stresses such as erosion, contact welding, oxidation or corrosion.
Especially, they must withstand electric arcs which can reach extremely high temperatures during the opening and closing phases.
This perfect balance between electrical performance and mechanical robustness is the key to ensure safety, durability, and reliability of these modern electrical installations.
