(Alliance News) - The following stocks are the leading risers and fallers on AIM in London on Wednesday.

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AIM - WINNERS

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UK Oil & Gas PLC, up 28% at 0.030 pence, 12-month range 0.020p-0.65p. The oil and gas firm with assets in UK and Turkey says that its planned strategic Dorset and Yorkshire Hydrogen Storage projects have received a letter of support from Summit Energy Evolution. Summit Energy is a wholly owned subsidiary of major Japanese trading conglomerate Sumitomo. Chief Executive Stephen Sanderson says: "Their LOS will help ensure we meet the application criteria in DESNZ's forthcoming Hydrogen Storage Revenue Support Allocation Round, a key step towards delivering our projects. We look forward to continued and fruitful cooperation with SEEL/Sumitomo and to securing further LOS from other potential storage users and investors".

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AIM - LOSERS

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Impax Asset Management Group PLC, down 11% at 447.00p, 12-month range 350.00p-802.00p. The sustainability-focused specialist investor sees its shares fall. For the six months ended March 31, Impax reported GBP24.6 million in pretax profit, up 15% from GBP21.4 million a year prior. Revenue for the half was down 2.1% to GBP86.2 million from GBP88.0 million. Impax declared an interim dividend of 4.7p for the period, flat from the previous first half. "Following nearly two years of relative headwinds, asset owner sentiment around the transition to a more sustainable economy and associated areas of Impax expertise has improved in recent months. We believe that companies providing innovative solutions that address environmental and social challenges remain compelling. Over the long run, we believe these companies can benefit from rising demand for their products and services and deliver strong earnings growth," CEO Ian Simm says.

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Revolution Bars Group PLC, down 20% at 1.20p, 12-month range 0.92p-7.10p. The bar chain, which operates the brands Revolution and Revolucion de Cuba, says its general meeting will be held on June 14. "If the fundraising is not approved, the board believes that shareholders are highly likely to lose all of their investment in the company," Revolution Bars says. In April, Revolution Bars announced a GBP12.5 million equity fundraise.

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By Sophie Rose, Alliance News senior reporter

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