Consultants and experts have recommended that Vietnam take measures to prevent foreign-invested projects from using outdated technologies, causing pollution and consuming national resources. First, oil refineries. The projects licensed so far in the field have total capacity of up to 50-60 million tons. It is estimated that petrochemistry and oil refineries can only bring profit of 10 percent. An oil refinery with the capacity of 6-10 million tons needs an area of thousands of hectares, but employs only 8,000-10,000 workers. Samsung’s project has investment capital of $3 billion, but only needs 100 hectares of land and employs 43,500 workers with average pay of VND11 million a month. Second, cement production. The licensed cement projects have total capacity of 65-70 million a year, which is much higher than domestic demand.