UK: Nottingham County Council has granted permissions to the Marblaegis Mine near British Gypsum's East Leake wallboard plant to operate for a further 17 years. The mine was originally licensed to operate until the end of 2025 but can now operate until 2042.

"The phasing out of coal-fired power stations means we have reducing access to synthetic gypsum or desulphogypsum, also called DSG, an important by-product we have been recycling into plasterboard since the early 1990s. We need to counteract this reduction in DSG output by increasing supply from mined and quarried natural gypsum as well as continuing to support plasterboard recycling programmes," said Jeremy Elvins, minerals and estates manager at British Gypsum to Inside Media.

The mine has an installed production capacity of 600,000t/yr but only 250,000t/yr is extracted at present. The mine supports 26 full-time staff at present although the nearby wallboard plant employs 264 staff and 125 contractors.

Australia: Boral's revenue from its gypsum wallboard join venture, USG Boral, has risen by 2% year-on-year to US$566m in the first half of its financial year, which ended on 31 December 2016, from US$552m in the same period in 2015. Its earnings before interest, taxation, depreciation and amortisation (EBITDA) rose by 18% to US$116m from US$98.5m. It attributed the sales growth to growth in its Sheetrock plasterboard product. The on-going rollout of Sheetrock is scheduled to continue until the end of 2017. Regionally, sales growth in South Korea, Australia and Thailand offset a declining market in China.

The building materials company added that its joint venture had started building a new warehouse at its USG Boral's Dangjin facility in South Korea in the reporting period. The upgrade at the site is intended to add incremental capacity and support the longer-term addition of at least 30Mm²/yr of plasterboard production capacity at the site, which has existing capacity to produce around 70Mm²/yr. The investment will be self-funded through the joint venture.

Overall, Boral's sales revenue fell by 5% to US$1.6bn from US$1.68bn. However, its profit after tax rose by 9% to US$114m from US$105m. It attributed this to a 'solid' performance in Australia combined with good earnings from Boral USA and USG Boral.

Argentina: Canada's Centurion Minerals has achieved its design capacity level of 2000t/day in January 2017 at the Ana Sofia Property agricultural gypsum fertiliser pilot plant located in Santiago Del Estero. The plant and operating team have been able to extract, crush and bag approximately 1000t of material since the unti started operation. Some of this material has been sold and delivered to Argentine fertiliser distributors. Centurion's local joint venture partner is currently negotiating supply contracts with distributors in Argentina, Paraguay and Uruguay.

Gypsum is quarried at the site from near-surface, flat-lying beds within a sedimentary formation. The gypsum rock is fed into a hopper leading to primary and secondary crushers, then screened and sorted into two agricultural gypsum fertiliser products. The plant produces both a pellet-sized granular product and a powdered product, each comprised of a minimum 85% gypsum content, that are packaged into 1t big bags.