Last checked at 
(Alliance News) - The following stocks are the leading risers and fallers on AIM in London on Friday.
----------
AIM - WINNERS
----------
Sound Energy PLC, up 15% at 1.90 pence, 12-month range 1.11p-3.65p. Moroccan-focused upstream gas company notes re-assessment of Moroccan taxes by tax administration. Welcomes dropping of main tax charge against subsidiary Sound Energy Morocco East Ltd but remains "of the strong opinion" that the remaining charges have been wrongly interpreted by the Moroccan Tax Administration. "The company, together with its advisors, continues to seek to engage constructively with the authorities," it says.
----------
Brave Bison Group PLC, up 8.2% at 1.84p, 12-month range 0.85p-2p. The social media and marketing firm swings to interim profit of GBP172,000, from a GBP1.4 million loss a year before. "Our group continues to be profitable on a month-by-month basis and has now been cash generative in two consecutive half year periods," says Executive Chair Oliver Green.
----------
AIM - LOSERS
----------
Premier African Minerals Ltd, down 9.1% at 0.209p, 12-month range 0.04p-0.49p. Says surge in Covid-19 cases causing delays with drill programme at Zulu lithium project in Zimbabwe. However, it remains on track with plans to prepare Zulu's definitive feasibility study in line with previously reported timelines. "Surging Covid-19 in the SADC region is not helping at Zulu where travel and other restrictions are impacting the drilling programme. Despite this, the rigs continue to operate and our lab equipment is now only awaiting import clearance to Zimbabwe," says Chief Executive George Roach.
----------
By Lucy Heming; lucyheming@alliancenews.com
Copyright 2021 Alliance News Limited. All Rights Reserved.
