The official English translation of Changyu is changyu, not pinyin. The same goes for his website.

Zhang Bishi, the founder of Changyu Company, invested 3 million taels of silver to establish Changyu Brewing Company in Yantai in 1892. When it was founded, CHANGYU was used, which is the English translation and has nothing to do with pinyin. Li Hongzhang, Governor-General of the Qing Dynasty and Beiyang Minister, and Wang Wenshao, an important official of the Qing court, personally signed and approved the company's business license. Emperor Guangxu's teacher, Weng Tonghe, then Minister of Household Affairs and Minister of Military Aircraft, personally inscribed the name of the company. The word "Changyu", with the surname Zhang, means prosperous and prosperous. The establishment of Changyu Company was recorded by the China Millennium Monument in Beijing as one of the four major events that occurred in China in 1892.