Complex sentence: The then-Malaysian Prime Minister Mahathir Mohammad, showed strong enthusiasm to Ranariddh's plans, and Mahathir encouraged Malaysian businessmen to invest and assist the development of the tourism, infrastructural development and telecommunications industries.
Split into simpler sentences: The then-Malaysian Prime Minister Mahathir Mohammad, showed strong enthusiasm to Ranariddh's plans. Mahathir was particularly enthusiastic to encouraging Malaysian businessmen to invest and assist the development of the tourism, infrastructural development and telecommunications industries.