with my country being its main producer

the toluene diisocyanate market is highly concentrated. in the international market, four companies, , , chemical, and yantai juli, account for more than 75% of the total market share. among them, is the world’s largest toluene diisocyanate manufacturer. , with a production capacity of 950,000 tons/year, followed by , with a production capacity of 900,000…