And Furukawa (according to "History of 100 Years of Business from Foundation") 'had always, on the company's own motion, faced with' the negotiations with the Mining Pollution Eradication Association in Morita after the Gengorozawa accumulation site had collapsed (and they say that since before the negotiation, they had been facing with the mining pollution.)
源五郎沢堆積場崩壊事故後の毛里田地区鉱毒根絶期成同盟会との交渉については（それ以前から鉱毒問題に関しては）、「つねに前向きの姿勢で対処してきた」（『創業100年史』より）と述べている。