Of these six ski areas, the main four (Annupuri, Higashiyama, Hirafu, and Hanazono) are sequentially interconnected and may be skied on one ski pass. The lift systems are owned respectively by the Chuo Bus company, YTL Resorts (which purchased Niseko Village from Citigroup in 2010), Tokyu Corporation and Pacific Century Premium Developments. Together they form skiable of what is known as the Niseko United. The lift system comprises 38 gondolas and lifts connecting 61 ski runs and 12 terrain parks. Kutchan's sister city is St. Moritz in a relationship established in 1964. Niseko Moiwa, adjacent to Annupuri, can be skied to from Annupuri but is not currently connected by the lift system. Niseko Weiss has not operated its lifts for decades, but people can still ski in this area, being taken uphill by snow cats.