For each tonne of coal burned, 3.6 tonnes of carbon dioxide is produced. Each tonne of microalgae absorbs two tonnes of . Sizes range from a kilogram of capacity to a hundred tonne. The carbon tax is currently $20 per tonne. In May 2017 the price was EUR 4.9 per tonne. Molybdenum had a value of approximately $30,000 per tonne as of August 2009. This contrasts with a positive carbon footprint of 0.4 tonne per tonne of conventional cement. Currently the carbon tax stands at 400rs per tonne. It produced 536.51 MT (million tonne) coal during FY2015-16. A 2018 study found this estimate lowered to between $94 and $232 per tonne. The proposal would have set an emissions price of NZ$15 per tonne of CO-equivalent. The jetty could accommodate barges with carrying capacity of 1,000 tonne to 3,000 tonne. The tax come into force in 2017 with a price of $20 per tonne. Its roof is a single 230 tonne Istrian stone, 10 meters in diameter. In 1995, phase-1 of 2 million tonne steel plant was commissioned.