Sell fruit juice, bread, steel, mechanical parts, helicopters, ..., there are more than twenty objects for sale.
Sell the electricity produced in your power stations, it will be necessary for the industry in your country.
Use the railways and your trains to transport your goods and those of other players.
Use ports and cargo ships to transport your own goods and those of other players.
Become a finance mogul, the stock market hold no secrets for you.