Please be advised that the next round of market event testing for LMEselect v10 will commence from 20 January 2025 to 23 January 2025 in Member Test B environment (MTB). The schedule of the planned events can be found under the MTB table further down on this page.
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 tests 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 distribution system (LMEsource v4).
v10 Algo Test: This environment enables Algorithmic Trading and Order Routing services under the New Trading Platform where members are allowed to test their Algo engines with the New Trading Platform slated to go-live in 2025.
MTA - used for testing against current production release
| System | Status | System Availability |
| 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 | System Availability |
| LMEselect v10 |
Available |
00.45: pre-open |
| LMEtrader on LMEselect v10 |
Available |
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 |
New Trading Platform - Market Event Testing 20 - 23 January 2025 (XLSX)
v10 Algo Test - used for testing Algo in v10 Production Environment
| System | Status | System Availability |
| LMEselect v10 |
Available |
08.45: pre-open |
| LMEtrader on LMEselect v10 |
Available |
As above |
| LMEsource v4 |
Available |
00.25 - 20.25 Monday to Friday |
The times highlighted in the System Availability column for MTA, MTB, and v10 Algo shown above, relate to the systems hours of availability - only.
LME support hours for these systems, are between 08:00 – 18:00 Monday to Friday, except for UK Bank Holidays.
Scheduled Maintenance
Scheduled maintenance for MTA and MTB is planned for Thursdays between the hours of 00.00-12.00 (UK time). There may be occasions that this will differ, depending on the nature or urgency of the maintenance.
Scheduled maintenance details are included in the LME Group general update weekly email. This is sent by our LME Relationship Management team every Friday.
UK Bank Holidays
The LME will be closed on all UK Bank Holidays.
All LME systems will be unavailable.
SFTP Reports will not be created.
Please check UK Bank Holiday calendar for specific dates.
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.