11. Under the Foreign Investment Law passed in 1995, which allows 51 per cent Cuban and 49 percent foreign ownership, Cuba is actively seeking foreign participation in commercial activities. Tourism infrastructure, the telecommunications sector and construction in general benefited. Since 2004, the Cuban government actively encouraged investment from China and Venezuela, especially in the nickel and energy sectors. 12. The Cuban constitution does not permit the sale of land. Land for commercial and industrial enterprises is usually acquired through the Cuban joint venture partners, leased on either a short-term basis or the right to use the land purchased for the particular business.