Dow Jones smallcap news is now on Twitter, allowing you to catch up on the news away from your desk. Go to http://twitter.com/DJ_UK_Smallcaps

VANE MINERALS PLC (VML.LN) said Wednesday fourth-quarter revenue from its gold and silver operations in Mexico rose 74% to $2.4 million, in line with management expectations.

VANE has also adapted the crushing and processing facilities attached to its Merrill Crowe plant to increase its day-to-day processing capability by 20%, such that it is now able to process up to 3,000 metric tons a month and expects production volumes to grow accordingly.

At 1525 GMT shares +0.2 pence, or 29.6%, at 0.9 pence.

STV PLC (STVG.LN), a Scottish broadcaster, plans to continue investing in its digital business this year, including the configuration of its local news websites for use on mobile devices in the second quarter of the year, its chief executive said.

Rob Woodward told Dow Jones Newswires that 56% of visits to its websites are through mobile devices, adding: "With the continued growing use of these devices, we're riding that wave." Configuring websites for mobile devices involves adapting them so that they can be easily viewed and used on smaller screens.

Shares up 13.5 pence, or 10.4%, at 143.0 pence.

SWEETT GROUP PLC (CSG.LN), a property and infrastructure professional services company, said its contracted order book value has exceeded 100 million pounds ($154.6 million) for the first time.

Shares +3.5 pence, or 19.4%, at 21.5 pence.

KEA PETROLEUM PLC (KEA.LN), a New Zealand-focused oil company, said it has received a 9% extension to the area of PEP 51155, increasing the size to 286 square kilometers.

Shares -0.4 pence, or 3.6%, at 10.0 pence.

RED24 PLC (REDT.LN), a provider of assistance and risk management services, said it has secured renewed three-year contracts with two North American underwriters to provide crisis management services on a retained basis, particularly, product recall services, adding that the contracts are worth an aggregate $996,000 a year.

Shares +0.9 pence, or 6.4%, at 14.6 pence.

SPECTRIS PLC (SXS.LN), a productivity-enhancing instrumentation and controls company, reported a 12% rise in 2012 profit and said it is well positioned for 2013 and beyond.

Shares +22.0 pence, or 0.9%, at 2,447.0 pence.

ELEMENTIS PLC (ELM.LN), a specialty chemicals manufacturing company, said it has agreed to buy the assets of Hi-Mar Specialty Chemicals, a U.S. coatings additives company, for $33 million in cash.

Shares +1.4 pence, or 0.6%, at 236.2 pence.

GULF KEYSTONE PETROLEUM LTD. (GKP.LN), an oil company focused on the Iraq's Kurdistan region, said its partner and the operator of the Akri-Bijeel Block, MOL Nyrt. (MOL.BU), has announced an oil discovery.

Shares -1.5 pence, or 0.75%, at 197.5 pence.

FTSE Small-Cap +0.7%

AIM -0.04%

Write to Iain Packham, Jana Weigand and Rory Gallivan at uksmallcaps@dowjones.com

Subscribe to WSJ: http://online.wsj.com?mod=djnwires