IB Daiwa

Daiwa was started in 1947 as a manufacturer of industrial use machine sewing thread and twisted yarns.^[2] The company subsequently diversified.^[3]

Following the 2011 Tohoku earthquake and tsunami, the series of Fukushima I nuclear accidents included the discovery of a roughly 20 cm crack in a concrete-lined basin behind the No. 2 reactor's turbine building. Daiwa provided a water-gel polymer mix which was introduced into the basin in an attempt to plug the leak;^[4] but the attempt was initially unsuccessful.^[5] In due course, the Tokyo Electric Power Company (TEPCO) announced that an injection of 6,000 litres (1,600 US gal) of polymer coagulant into the pit did mitigate the leaking;^[6] however, the International Atomic Energy Agency (IAEA) and others credit additional factors as well.^[7]

• IB Daiwa website in Japanese

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