- Centamin [LON:CEY] was one of the sector's top risers on hopes that a new law might result in a third party claim over its right to operate the Sukari gold mine being dismissed.

The company understands, based on legal advice, that the new law will restrict the capacity for third parties to challenge any contractual agreement between the Egyptian government and an investor.

And it says the new law appears to cover all currently pending lawsuits and challenges.

Centamin says it continues to discuss with its advisers the process by which the original claim in relation to the Sukari concession agreement, which was brought by a third party and is subject to an ongoing court appeal, may be dismissed under the provisions of this new law.

* * *

Kenmare Resources [LON:KMR] - a leading global producer of titanium minerals - was another big riser after it reported a significant increase in mining and production in the first quarter.

Ore mined increased by 81% to 7,543,000 tonnes (Q1 2013: 4,156,000 tonnes) with production of heavy mineral concentrate up 51% to 287,000 tonnes (Q1 2013: 189,800 tonnes).

Production of ilmenite rose by 53% to 210,800 tonnes and production of primary zircon increased by 35% to 7,700 tonnes.

Sales of finished products up 299% to 193,900 tonnes (Q1 2013: 48,500 tonnes).

Managing director Michael Carvill said: "The first quarter of the year saw a significant increase in mining and production compared to Q1 2013 following the completion of the expansion of Moma in late 2013.

"Q1 has historically been our lowest production quarter due to the issues associated with power supply in the Southern Hemisphere summer months. Consequently, we are pleased to have reached an agreement to bring a diesel-powered electricity generating plant on site as an auxiliary power source, providing the mineral separation plant with increased security of power supply to more effectively utilise our new expanded facilities.

"With the rescheduling of debt payments completed and the problem of power fluctuation having been mitigated, we look forward to reporting further progress on lowering unit operating costs and ramping up production to nameplate capacity."

* * *

Tertiary Minerals' [LON:TYM] shares were also up after the market responded to a statement which said the recent downward move in the share price was exaggerated and unjustified. Directors added they knew of no reason for such movement.

The downward move followed the positive announcement of Tertiary's its maiden JORC compliant Mineral Resource Estimate for the MB Project which has doubled the tonnage of fluorspar contained in the JORC compliant Mineral Resources under the Company's control.

"We recognise that our shareholders have been supportive of the Company and as the Company's share price has appreciated significantly as a result of the development of its projects, shareholders periodically may wish to realise any gains made on share price appreciation," the company said.

Tertiary said it continued to execute its stated strategy of building a strategic position in the fluorspar sector and is well positioned to provide future supply of this important industrial mineral.

"The directors are confident in the future prospects for the company."

* * *

Beowulf [LON:BEM] says its wholly-owned subsidiary, Jokkmokk Iron Mines, has recently submitted an updated exploitation concession application for the Kallak North deposit to the Swedish Mining Inspectorate at Bergsstaten.

The Kallak North deposit is located within the Kallak nr1 permit area within the municipality of Jokkmokk in Norrbotten County in northern Sweden. The updated application is a revised and expanded version of the original submission made in April 2013, following the County Administrative Board of Norrbotten's request in late November for further information and clarification on certain aspects of the environmental impact assessment component of JIMAB's original application.

JIMAB has now added certain supplements to the EIA along with further technical description and commentary. The enhanced report comprises 164 pages, including various figures and tables, with an additional 16 appendices of more than 200 pages in length covering various technical and specialist aspects based on work performed by well-renowned expert consultants appointed by JIMAB.

* * *

Trans-Siberian Gold [LON:TSG] reports mine development activities at Asacha in Q1 comprised about 867 metres, while ore extraction (including ore from stoping and mine development) amounted to 48,682 metric tonnes, the second highest quarterly total to date.

Plant throughput averaged 11,788 tonnes per month (94.3% of planned 12,500 tonnes), reflecting a maintenance and repair period during February which reduced that month's throughput to 7,691 tonnes.

Average dilution was 54.6% in the first quarter (2013 first quarter: 64.9%).

Ore dilution in March 2014 was 47.2%, the best monthly figure in 2013/14 and the Company remains cautiously optimistic that dilution can be reduced further through the continued implementation of the previously reported adjustments in mining methods.

* * *

Berkeley Resources [LON:BKY] has been granted a mining licence for Retortillo by the regional government of Castilla and León.

The Retortillo deposit forms part of the company's flagship Salamanca project in Spain and is the first resource from which production is scheduled to commence.

The licence is valid for an initial period of 30 years and may be renewed for two additional periods of 30 years. It covers an area of 25.2 square kilometres and includes the entire area containing the Retortillo mineral resource estimate.

* * *

Industrial action hit Anglo American's [LON:AAL] platinum production in the first quarter while the majority of its other business streams reported increased output.

Kumba Iron Ore production increased by 10% to 11.3 million tonnes, following solid performances at both Sishen and Kolomela. Q1 2013 was impacted by lower than planned production at Sishen following the unprotected strike in Q4 2012.

Export metallurgical coal production increased by 31% to 6.1 million tonnes, a record quarter, primarily as a result of continuing productivity improvements.

Export thermal coal production from South Africa increased by 6% to 4.1 million tonnes. Cerrejón's production increased by 95% reflecting the strike affected Q1 2013 period.

Copper production increased by 18% to 202,000 tonnes, with improved performance from Los Bronces and Collahuasi, primarily the result of higher ore grades. Production guidance for FY 2014 has been revised upwards to 710,000 - 730,000 tonnes (previously 700,000 - 720,000 tonnes).

Nickel production increased by 48% to 9,200 tonnes driven by improved operational stability at Barro Alto.

Niobium production was flat at 1,100 tonnes as higher recoveries were offset by lower ore grade.

Phosphates concentrate production was flat at 347,900 tonnes. Fertiliser production decreased by 2% due to unplanned maintenance stoppage and throughput constraints.

Diamond production increased by 18% to 7.5 million carats, largely due to the impact of planned plant maintenance at Orapa in Q1 2013 and recovery from the 2012 sidewall failure at Jwaneng.

But platinum equivalent refined production decreased by 39% to 357,000 ounces as a result of the industrial action at Rustenburg, Amandelbult and Union mines in South Africa. As a consequence of the ongoing industrial action FY 2014 production guidance has been revised downwards to approximately 2.1 million ounces (previously 2.3 - 2.4 million ounces)

* * *

African Barrick Gold's [LON:ABG] gold production rose to 168,375 ounces in the first quarter - 18% up on a year ago.

Gold sales were 5% below production at 159,384 ounces, but 10% higher than last year.

Chief executive Brad Gordon said: "We have delivered another strong set of results, with production of 168,375 ounces and all-in sustaining costs of US$1,131 per ounce, our sixth successive quarterly reduction in AISC.

"As a result of our continued cost discipline we generated positive cash from the operations during the quarter and continue to expect to be cash flow positive for the full year. We also continue to make progress on our expansion projects with the commencement of commissioning of the Bulyanhulu CIL Expansion, approval for an underground portal at North Mara and today's announcement on the approval of the Upper East Zone at Bulyanhulu which together will further drive the business forward.

"We remain on track to achieve our guidance of 650,000-690,000 ounces of gold production at AISC per ounce of between US$1,100 and US$1,175."

At 4:22pm:

[LON:AMI] African Minerals Ltd share price was +0.5p at 130.75p

[LON:AQP] Aquarius Platinum Ltd share price was -1.37p at 20.63p

[LON:BEM] Beowulf Mining PLC share price was +0.33p at 5p

[LON:BKY] Berkeley Resources Ltd share price was +0.38p at 15.63p

[LON:CEY] Centamin PLC share price was +6.35p at 62.3p

[LON:CHL] Churchill Mining PLC share price was 0p at 21p

[LON:CZA] Coal of Africa Ltd share price was -0.06p at 3.82p

[LON:FDI] Firestone Diamonds PLC share price was +0.01p at 3.63p

[LON:FRES] Fresnillo PLC share price was -7.5p at 845.5p

[LON:GEMD] Gem Diamonds Ltd share price was -0.87p at 164.13p

[LON:HOC] Hochschild Mining PLC share price was +1.13p at 165.38p

[LON:KMR] Kenmare Resources PLC share price was +1.13p at 13.38p

[LON:TSG] TransSiberian Gold PLC share price was +0.5p at 11.75p

[LON:TYM] Tertiary Minerals PLC share price was +0.75p at 7.75p

[LON:VED] Vedanta Resources PLC share price was +15.25p at 946.75p

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