The Kind of Scraps We Process
Electronic & Industrial
  • Printed Circuit Boards
  • Integrated Circuits
  • Ceramic Substrates
  • Interconnectors
  • Chips
  • Wafers
  • Precious Metal Bearing Components
  • Gold Bonding Wire
  • Contacts
  • Other e-wastes on a case-by-case basis
  • Cyanide, solution, resin
  • Gold Plating and Stripping Solution
  • Dragouts
  • Resins
  • Filters
  • Wipes

  • Sweeping Filings
  • Polishings
  • Karat Gold

Electronic Scrap




Gold Wire

Gold Dust
Fire Assaying:
We determine the value of your lot by assaying the samples taken from it. The process used is fire assaying.

In classis fire assaying (actually a miniature refining process), the sample is first melted in a special furnace. The base metal is forced into slag, and the precious metals collected by lead at the bottom of the crucible. The lead is then oxidized and removed, leaving a bead of pure bullion, a precise sample of your entire lot. It is weighed as a basis of calculating the amount of precious metals in your shipment.

In all cases, duplicate samples are assayed independently and the results cross-checked for accuracy.

London Metal Exchange

Contact CENTER
  • +(65) 6861 1766