Visakhapatnam, Tirupati and Vijayawada being international airports. Industrial sector The industrial sector of the state includes some of the key sectors like pharmaceutical, automobile, textiles etc. Sricity located in Chittoor district is an integrated business city which is home to firms including PepsiCo, Isuzu Motors, Cadbury India, Kellogg's, Colgate-Palmolive, Kobelco etc. The PepsiCo firm has its largest plant in India at Sri City. The state is also emerging as destination for the automobile industry which already hosts companies including Ashok Leyland in Krishna district, Hero Motors in Chittoor district, Kia Motors in Anantapur district. The state is also emerging in information technology and biotechnology. The IT/ITES revenues of Visakhapatnam is at in 2012–2013. The development of IT in Tier-II and Tier-III cities like Vijayawada, Kakinada and Tirupati is also improving. In the fiscal year 2012–2013, Vijayawada's IT/ITeS revenues were . Tirupati with and Kakinada with stand next. For the benefit of state, that is, after separating Telangana from Andhra, people of Andhra protested for special status during January in 2017. Resources Andhra Pradesh is one of the storehouses of mineral resources in India. Andhra Pradesh with varied geological formations, contain rich and variety of industrial minerals and building stones. Andhra Pradesh is listed at the top in the deposit and production of mica in India. Minerals found in the state include limestone, reserves of oil and natural gas, manganese, asbestos, iron ore, ball clay, fire clay, gold diamonds, graphite, dolomite, quartz, tungsten, steatitic, feldspar, silica sand. It has about one-third of India's limestone reserves and is known for large exclusive deposits of barytes and galaxy granite in the international market. Mining Mining is identified as one of the growth engines for the overall development of industry and infrastructure. The Tummalapalle Uranium mine in Andhra has confirmed of ore and there are indications that it could hold reserves totaling three times its current size. of metal grade Bauxite deposits in proximity to Visakhapatnam Port. Reliance Industries struck nine trillion cubic feet of gas reserves in the KG basin, off the Andhra Pradesh coast near Kakinada. Discovery of a large quantity of natural gas in KG Basin is expected to provide rapid economic growth. During 2016, nearly of methane hydrate deposits were explored in KG basin whose extraction was adequate to impart energy security for many decades to India. Power plants The state is a pioneer nationwide in solar power generation. APGENCO