SCANDAL! Paul Zhang, the Chinese billionaire owner of Tian Tang in trouble; Uganda Railways sues his steel firm for stealing UGX11.4bn worth of rail line to feed his steel factory Ironically as government is frantically looking for money to rebuild the vandalised railway line to reduce the cost of doing business for investors like him, the Chinese billionaire's firm was caught red-handed with stolen rail sleepers that were being converted into steel products.