Welcome to the London Metal Exchange Group's (LMEG) customer test home page where you can find all information relating to our customer test service and environments.
Market Test (MT) is split into two separate environments - Market Test A (MTA) and Market Test B (MTB). The MT environments are accessible over LMEnet and CDC with a subset of services accessible via the internet. MT is only present in DC1. Connectivity details are contained within the LME Systems Connectivity Guide (PDF) .
MTA: Application versions replicate LME’s current production system versions and provide our existing market participants a testing platform to test their FIX feeds, trading strategies, internal systems, etc. It is also used to allow potential new client’s exposure to LMEG’s trading systems.
MTB: This is where LME deploys and test fixes and upgrades to their systems which includes, but is not limited to, LMEselect, LMEsource, LMEsmart, and LMEmercury. This environment can be accessed by existing and/or new market participants to test their systems/platforms against LME’s future systems releases/upgrades. MTB will be used for the customer test phase of the New Trading Platform (LMEselect v10) and the new version of market data distibution system (LMEsource v4)
MTA - used for testing against current production release
| System | Status | Test window |
| LMEselect v9 |
Available |
00.45: pre-open |
| LMEtrader on LMEselect v9 | Available |
As above |
| LMEsmart |
Available |
01.00 - 20.00 |
| LMEmercury |
Available |
07.30 - 20.30 |
| LMEsource v3 |
Available |
00.35 - 20.55 Monday to Friday |
| LMEprism |
Available |
24/7 |
| LMEsftp(UDG) |
Available |
24/7 |
| LMEsftp |
Available |
24/7 |
MTB - used for testing the new trading platform
| System | Status | Test window |
| LMEselect v10 | Available -
Please note that contracts AHDF and CADF are currently not available. |
00.45: pre-open |
| LMEtrader on LMEselect v10 |
Available from November 2023 | As above |
| LMEsmart |
Available |
01.00 - 20.00 |
| LMEmercury |
Available |
07.30 - 20.30 |
| LMEsword |
Available |
24/7 |
| LMEsource v4 | Available | 00.35 - 20.55 Monday to Friday |
| LMEsftp(UDG) |
Available |
24/7 |
| LMEsftp |
Available |
24/7 |
Scheduled maintenance
Scheduled maintenance for MTA and MTB is planned for Thursdays between the hours of 00.00-12.00 (London time). Although we will always aim to plan for this day and times, there may be occasions when we need to plan maintenance on different days and times depending on the nature or urgency of the maintenance.
Upcoming scheduled maintenance will also be added to the LME Group general update weekly email sent by the LME Relationship Management team every Friday.
Notes
- LMEselect, LMEsource, LMEsmart and LMEmercury are not available in MTA and MTB on UK bank holidays
Contact us
Please email customertest@lme.com for all questions relating to the customer test environments.
Customer test support hours: 08.00 -18.00 (London time).
Monday - Friday except for UK Bank Holidays.