Last checked at 
(Alliance News) - The following stocks are the leading risers and fallers on AIM in London on Tuesday.
----------
AIM - WINNERS
----------
Itaconix PLC, up 28% at 5.50 pence, 12-month range 1.80p-17.50p. The speciality polymers firm announces the resumption of production at a plant in the US north east, following previous interruptions due to water damage. Itaconix confirms that it has met and expects to continue to meet all customer orders. The company is working closely with one large customer on minor delivery delays that will not impact the customer's operating needs, it noted.
----------
PetroNeft Resources PLC, up 20% at 3.59p, 12-month range 0.55p-4.70p. Shares in Tomsk Oblast-focused oil & gas firm rise following a completed reserves and resource audit for two licences, giving them both a more than doubled valuation. Following the audit by consulting firm Miller & Lents, licences 67 and 61 now collectively have a proved, probable and possible net attributable reserve of 107.15 million barrels, up 2.8% from 104.21 million barrels, the figure given by the legacy audit from Ryder Scott.
----------
Empresaria Group PLC, up 13% at 77.67p, 12-month range 44.40p-94.00p. The recruiter says that its annual pretax profit will be "materially" ahead of market forecasts. Empresaria says it has continued to deliver a strong trading performance across several sectors in the final quarter of 2021 to date, keeping up the momentum seen over the second half of the year. In late October, the group had said it expected net fee income for 2021 to be between GBP57 million and GBP59 million, while adjusted pretax profit was set to range from GBP7.4 million from GBP7.9 million, a 9% to 16% beat to market consensus at the time.
----------
AIM - LOSERS
----------
Touchstone Exploration Inc, down 11% at 90.12p, 12-month range 0.75p-107.00p. Shares in Calgary, Canada-based oil and gas company fall despite upbeat test results. Says final production test results from its Royston-1 exploration well showed a light oil discovery, setting the way for the commerciality of the site. All three of the tests encountered economic oil and confirmed the presence of hydrocarbons, Touchstone explains.
----------
By Arvind Bhunjun; arvindbhunjun@alliancenews.com
Copyright 2021 Alliance News Limited. All Rights Reserved.
