Complex sentence: In 1964, Sino-Malaysians accounted for 91.7% of the private corporate holdings in Malaysia and ownership of the Malaysian gravel pump and small scale tin mines were completely placed in the hands of ethnic Chinese entrepreneurs.
Split into simpler sentences: In 1964, Sino-Malaysians accounted for 91.7% of the private corporate holdings in Malaysia. Ownership of the Malaysian gravel pump and small scale tin mines were completedely placed in the hands of ethnic Chinese entrepreneurs.