Last checked at 
(Alliance News) - The following stocks are the leading risers and fallers on AIM in London on Wednesday.
----------
AIM - WINNERS
----------
Mercantile Ports & Logistics Ltd, up 48% at 0.86 pence, 12-month range 0.20p-0.95p. The port and logistics firm based in India secures multi-year pact with Esquire Shipping & Trading Pvt Ltd and Sai Om Petro Specialties Ltd worth GBP7 million. The contract has an initial 10-year term which can be extended by a further five. The two firms will provide cargo handling services at Mercantile's Karanja port.
----------
Braveheart Investment Group PLC, up 12% at 48.10 pence, 12-month range 11.65p-140.20p. Investee Paraytec Ltd's Covid-19 test achieves 94% sensitivity and 100% specificity. Braveheart and Paraytec begin talks with potential commercial partners.
----------
Touchstar PLC, up 12% at 81.20 pence, 12-month range 35.80p-93.50p. Supplier of mobile data computing services says its year-to-date performance tops expectations. Order book rises 50% since year end to over GBP750,000.
----------
Avacta Group PLC, up 9.6% at 183.02 pence, 12-month range 88.66p-291.80p. Shares in the developer of diagnostics and cancer therapies recover, snapping streak of three successive days of losses. Avacta shares are still 19% lower than they were on Thursday.
----------
AIM - LOSERS
----------
Myanmar Investments International Ltd, down 21% at USD0.30, 12-month range 0.25p-0.77p. Soldiers in Myanmar fought with anti-junta civilian militia on Tuesday. Violence has erupted in Myanmar since a coup in February.
----------
By Eric Cunha; ericcunha@alliancenews.com
Copyright 2021 Alliance News Limited. All Rights Reserved.
