The know-how and material for developing chemical weapons were obtained by Saddam's regime from foreign sources. Most precursors for chemical weapons production came from Singapore (4,515 tons), the Netherlands (4,261 tons), Egypt (2,400 tons), India (2,343 tons), and West Germany (1,027 tons). One Indian company, Exomet Plastics, sent 2,292 tons of precursor chemicals to Iraq. Singapore-based firm Kim Al-Khaleej, affiliated to the United Arab Emirates, supplied more than 4,500 tons of VX, sarin and mustard gas precursors and production equipment to Iraq. Dieter Backfisch, managing director of West German company Karl Kolb GmbH, was quoted by saying in 1989 that "for people in Germany poison gas is something quite terrible, but this does not worry customers abroad."