J.K. Cement is an affiliate of the J.K. Organization, which was founded by Lala Kamlapat Singhania. The J.K. Organization is an association of industrial and commercial companies and has operations in a broad number of industries.
Our cement operations commenced commercial production in May 1975 at our first plant at Nimbahera in the state of Rajasthan. At Nimbahera, we started with a single kiln with a production capacity of 0.3 million tons. We added a second kiln in 1979 with production capacity of 0.42 million tons, and a third kiln in 1982 with a production capacity of 0.42 million tons. We added a precalciner with a capacity of 0.4 million tons in 1988, which increased our capacity at Nimbahera to 1.54 million tons. During the years 1998 through 2003, we continued to implement modifications to each of our kilns, which increased our aggregate capacity at Nimbahera to 2.8 million tons as of September 30, 2005.
We commissioned a second grey cement plant at our Mangrol plant in 2001, with a production capacity of 0.75 million tons. As of September 30, 2005, we had an aggregate production capacity of 3.55 million tons per annum of grey cement. Our white cement plant was completed in 1984 with a capacity of 50,000 tons. Our continuing modifications to the plant have increased its production capacity to 300,000 tons as of September 30, 2005.