Customer test

Welcome to the LME Group Customer Test webpage. This page aims to provide all information relating to our Customer Test service and environments.

Customer Test support hours 08:00 – 17:00 (UK hrs) Monday - Friday.

Scheduled down time; planned maintenance will take place on Thursdays between the hours of 00.00-12.00 (UK hrs).

System status    

Please note as per LME Notice 20/169 LMEselect, LMEselectMD and LMEsource are no longer available in MTB.

  • LMEsword is only available in MTB.
  • LMEprism is only available in MTA.

LMEsmart GUI – To remediate display issues observed on the Trade Management and Trade History screens of the LMEsmart GUI, the LME will be installing a patch on both the member test and production environments on the 9th and 11th June respectively.

The supported version going forwards will be Google Chrome and Microsoft Edge namely:

    • Google Chrome V1001
    • Microsoft Edge V1001

Please also be aware that Microsoft Internet Explorer 11 is going end of life on June 15, 2022 and thus will no longer be supported.

1The LMEsmart GUI is officially supported on the Google Chrome (100.0.4896.127), Microsoft Edge (100.0.1185.50). The GUI may work on later versions of the above browsers, but has not officially been tested on these. The GUI may work on other browsers, but is not officially supported on these.

Note; The URL for LMEsmart in both test and production will remain unchanged.

System MTA MTB Environment information

System available

System unavailable



System available

System available



System available

System available

LMEsword System unavailable
System available

LMEsource System available
System unavailable
LMEprism System available System unavailable

System available

System available


System available

System available  

Environment availability - Trading hours

LMEselect 00:45 (pre-open) – 19:00 (Base metals) 20:00 (Precious metals) LMEselect: Orders can be entered into LMEselect from 00:45 (pre-open) through to 19:00 (Base metals) 20:00 (Precious metals)
LMEsmart 01:00 – 20:00

LMEsmart: Trades resulting from above orders transfer to LMEsmart for matching from 01:00 to 20:00

LMEsmart: Trades can be entered into LMEsmart from 01:00 to 20:00

LMEmercury 07:30 – 20:30 LMEmercury: Matched trades transfer to LMEmercury from 07:30 to 20:30
07:30 – 20:00 End to end testing available



Contact us

Please email customertest@lme.com for all questions relating to the Customer Test environments.

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