[Estimated production by the official inspection of coal-tar dyes (including dye aluminum lakes) in 1990 based on official inspection figures].

The number of official inspections of coal-tar dyes and their lakes from april in 1990 till march in 1991 was 836 in total. The quantity passed amounted to 238 ton in Japan. The production of color for each month was summarised in Table 1, and by each producing company in Table 2. The food coal-tar dye produced in the largest quantity was Food Yellow No. 4, occupying 46.2% in this period.