The London Metal Exchange (LME) is pleased to announce that Sigma Broking Limited begins trading and clearing today (21 February 2022) as a Category 1, Ring-dealing member.

Sigma Broking Limited is part of the Sigma Group and is the LME’s ninth Ring-dealing member.

Matthew Chamberlain, LME CEO, said: “We are delighted to welcome Sigma Broking Limited to the Ring – the first member to join the trading floor community for a number of years. Sigma will be a key player in establishing the Official Prices to support clients who use these in their metals contracts globally.”


Notes to editors

  • Category 1 or Ring-dealing members are entitled to trade in the Ring, LMEselect and the telephone market. Ring-dealing members can issue LME contracts – buying and selling material for their clients. They are also members of the clearing house.
  • A full list of LME members can be found on our website.

Contact us

For further information or to speak to an LME spokesperson, please contact:

Miriam Heywood

Andrea Blumire