Chew Chong devised one of the first "share-milking" systems, whereby he allowed farmers to graze their cows on his pasture and milk them using his facilities, in return for supplying the milk to his factory.
為了確保充足的原料來源，張朝發明瞭「榨乳分享制度」，讓只有乳牛的農人到他的牧地上放牧，利用他的設備擠乳，再將牛奶提供給他的工廠。