This advertisement was first seen in the Chinese newspaper in 1912. So, it may be assumed that this product was introduced that year while it was first commercialized 30 years ago
Regarding the date of introduction, an early advertisement of Scott's Emulsion of Cod Liver Oil (with trademark) can be viewed in the Hong Kong Telegraph on 2 January 1892 here (scroll to Page 4). Messrs. A. S. Watson & Co. were the sole agents of the product in Hong Kong & China, likely commencing from December 1886.
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Date of introduction to Hong Kong
This advertisement was first seen in the Chinese newspaper in 1912. So, it may be assumed that this product was introduced that year while it was first commercialized 30 years ago
Scott's Emulsion of Cod Liver Oil
Regarding the date of introduction, an early advertisement of Scott's Emulsion of Cod Liver Oil (with trademark) can be viewed in the Hong Kong Telegraph on 2 January 1892 here (scroll to Page 4). Messrs. A. S. Watson & Co. were the sole agents of the product in Hong Kong & China, likely commencing from December 1886.
Further Sources