Greenearth Resources and Projects, earlier known as Austral Coke & Projects was incorporated in 1994, promoted by Shri Ratan Lal Tamakhuwala and Shri Rishi Raj Agarwal. The flagship company of Gremach Infrastructure Equipments and Projects Ltd is engaged in the manufacture and sale of low ash metallurgical coke and refractory in India.Originally incorporated as NRE Stocknet on 22 April 1994, it got its present name on September 14, 2005. In 2010 the company has changed its name from Austral Coke & Projects Ltd. to Greenearth Resources and Projects Ltd.

LAM coke produced by Austral is used as a reducing agent in blast furnaces for reducing iron ore into hot metal in steel, foundries, zinc smelters, cement and ferro alloy industries.

It also deals in trading of textiles and rentals of construction and earthmoving machineries to medium/large construction companies. Currently it has capacity to produce 375,000 MT coke per annum which is planned to increase up to 525,000 MT per annum by FY’09.Current capacity utilization of LAM Coke plant is 65% of 175,000 MTPA which is expected to increase up to 75% of 525,000 MTPA by FY'09.

The company came up with a public issue in 2008 with an objective to to set up a Rs 78.12-crore 1,50,000-tonne per annum LAM coke plant at Sindhudurg in Maharashtra and a Rs 30.77-crore 8-MW captive power plant at Sindhudurg, to acquire coal mines to bag more prospecting mining licenses at a cost of Rs 40 crore, and prepayment of high cost debt amounting to Rs 2.54 crore.

Products  of the company include

• Coke-Low Ash Metallurgical Coke (MetCoke) - Hard Coke is actually end product, commonly known as Low Ash Metallurgical Coke. It finds useful applications in steel plants, foundries, blast furnaces, soda ash manufacturing, graphite industry & other chemicals. The raw material for making hard coke is Low Ash Coking Coal sourced mainly from Australian, Chinese and USA coal mines.
• Refactory - Austral Coke & Projects Limited has set-up a Refractory Division at Bhachau, Bhuj District of Gujarat and has started its manufacturing of Refractory products with cutting-edge technology in a phased manner. The company's refractory is a business division of Austral Coke & Projects Limited a group particularly with a varied  customer base.
• Power Plant - Power sector is one of the sectors where there is always high demand and less supply by considering the domestic scenario, we noticed that the domestic supply is not adequate to meet domestic demand. Captive power plant using waste heat gases is a proven technology and is extensively adopted by players in the steel value chain.

Group companies

• Gremach Infrastructure Equipments & Projects Limited
• Armstrong Infrastructure & Projects Limited
• Austral Infrastructure Private Limited
• Gremach Infrastructure Private Limited
• Wallford IndiaInfrastructure Reality (P) Limited
• Astra Energy Limited SARL (Guinea)

Other developments:

Austral Coke & Projects Board, at its meeting held on December 10, 2008, decided that the plant location be shifted from Sindhudurg to Lunva, Gujarat, since the company's existing plant is already there. The company possesses sufficient land there. The shift was proposed in conformity with the clause ‘Land & Site Development’ of Prospectus wherein it has been specifically mentioned that management may decide for the relocation of project site to comply the regulatory policies or any other issues.

In same year the company through its subsidiary Astra Mining Limitada, Mozambique, acquired six prospective licenses admeasuring 100,000 hectares in Mozambique. This acquisition will provide raw material security to Austral.

In 2007, Gremach Infrastructure bought 75% stake in 11 coal mines in Mozambique to provide feedstock security for Gremach group firm Austral.