California-based business technology specialist Trimble Navigation Limited has announced a public tender offer for Tekla Corporation, a leader in building information modeling technology (BIM) for the construction industry.

Headquartered in Finland, with a US office in Atlanta, Georgia, Tekla has approximately 500 employees and operations in 15 countries worldwide.

Trimble’s offer of €15.00 per share in cash is being handled by its subsidiary Trimble Finland Oy, and values Tekla at approximately €311 million ($451 million).

Vale, the world’s second largest mining company, has opened a new coal mine in Moatize, Mozambique.

Activities at the new coal mine in the Tete province have commenced ahead of operations at the processing plant, with production due to start in July.

The $1.658 billion mine will have a production capacity of 11 million tons per year of metallurgical and thermal coal, which will be transported 600 kilometres from Moatize via the Sena railway line to a coal terminal under construction at the Port of Beira in the Sofala province.

Intel has announced a major technical breakthrough in microprocessors with a 22 nanometer chip using 3-D transistors.

Intel’s 3-D transistor design (called Tri-Gate) is now ready for high volume production and will be introduced at the 22-nanometer (nm) node (referring to the size of individual transistor features) in a chip codenamed "Ivy Bridge." More than 6 million 22nm Tri-Gate transistors could fit in the period at the end of this sentence.

Germany’s biggest steelmaker, ThyssenKrupp, has announced a major restructuring of its business as it seeks to increase its focus on engineering.

The €10 billion divestment plan is designed to enable the company to strengthen its existing competences in engineering and take advantage of opportunities in emerging markets to expand its current business scope.

Applied Materials, a leading equipment supplier to the semiconductor industry, has taken the first steps in the $4.9 billion acquisition of Varian Semiconductor Equipment Associates, a leading supplier of ion implantation equipment used by chip makers around the world.

After closure, Varian will operate as a business unit of Applied's Silicon Systems Group and continue to be based in Gloucester, Massachusetts.

The UK has the potential to capture just under a quarter of the global marine energy market, according to analysis released today by the Carbon Trust.

Becoming a global leader in the marine energy market would be worth the equivalent of up to £76 billion to the UK economy by 2050, and generate over 68,000 UK jobs, the Trust said.

New jobs would develop on the back of growing export markets in countries such as Chile, Korea and America, as well as European states facing the Atlantic Ocean, which benefit from powerful waves or currents.

New York City has chosen Nissan to supply its next generation taxi fleet. The Taxi of Tomorrow, based on the NV200 minivan, will be built in the Nissan plant in Cuernavaca, Mexico and is expected to enter service in 2013.

The 10-year contract, estimated to be worth $1 billion (£607 million), was announced Tuesday at a City Hall press briefing by Mayor Michael Bloomberg and Nissan Americas Chairman Carlos Tavares.

Aquarius Platinum is to buy the mineral rights to the southern part of Northam Platinum’s Booysendal project for R1.2 billion, it has been announced.

The mineral rights comprise several farms underlain by the UG2 and Merensky reef horizons, collectively called Booysendal South. Aquarius, which will acquire the platinum group metals and associated base metals mineral rights, said that after geological losses, the rights would increase its current resource base by approximately 24 per cent.

Abingdon, Virginia-based Alpha Natural Resources has reported a tripling of net profits to a total of $49.8 million for the first quarter of this year, up from $14 million for the same period a year ago.

Total revenues in the first quarter were $1.1 billion compared to $922.0 million in the same period of 2010. Coal revenues totalled $987.0 million—up 19 percent from $831.3 million a year ago.