Acquisition-hungry caterer Compass is at it again, buying another company, this time in Japan.It has gobbled up NKS Kabushiki Kaisha and associated companies a provider of food services, primarily to the healthcare sector, in Japan. The business is based in Tokyo, operating around 200 units with over 1,200 staff. The acquisition strengthens Compass's presence in the expanding healthcare sector and, in particular, in senior living, which is a significant growth area in Japan.Compass did not reveal how much it paid for the business but did disclose that NKS had revenues of around £50m in the year to the end of March 2011 and that it has gross assets of around £36m. jh