Swedwood, an IKEA subsidiary, handles production of all of the company's wood-based products, with the largest Swedwood factory located in Southern Poland. According to the subsidiary, over 16,000 employees across 50 sites in 10 countries manufacture the 100 million pieces of furniture that IKEA sells annually. IKEA furniture uses the hardwood alternative particle board and Hultsfred, a factory in southern Sweden, is the company's sole supplier.