the contract for the current occupant japan's tdk is up. the electronics parts maker is withdrawing their huge ad after 25 years. tdk's exit marks an end to nearly four decades at piccadilly circus. the area is now filled with billboards from u.s. and south ye an companies. japanese residents in london feel that the times are changing. >> i think japan's presence is getting weak. >> south korea and other countries are making economic growth. >> tdk officials say they don't need the advertising so much. the firm shifted its focus to products for corporate consumers. consumers around the world can't get enough of beef. growing demand in china is butting pressure on the global supply and driving up prices. in january of last year the chinese government expanded imports of beef. this policy had had an impact on beef lovers in japan, where 60% of the beef consumed comes from overseas. japanese traders are finding it ever harder to compete with chinese buyers for dwindling supplies. >> china's growing appetite for beef is taking a bite out of thi