Printed by Cheng Chung Book Company (正中书局) in 1947, these Chinese textbooks contain classical Chinese text and were used by upper secondary students in Singapore’s Chinese-medium schools.Set up in 1931 in Nanjing, Cheng Chung Book Company focused on writing and publishing textbooks. After the founding of the People’s Republic of China in 1949, the company moved its operations to Taiwan and is still in existence today.