As global health awareness continues to rise and the aquaculture industry expands, the demand for high‑efficiency disinfectants has surged dramatically. Whether in swimming pool water quality management or in the prevention and control of aquatic diseases in aquaculture, trichloroisocyanuric acid (TCCA) and sodium dichloroisocyanurate (SDIC) have become the preferred disinfectant products due to their excellent bactericidal performance. In 2025, the global TCCA and SDIC market size reached RMB 11.095 billion, and is projected to grow to RMB 16.874 billion by 2032, at a compound annual growth rate (CAGR) of 6.17%. Among these, TCCA and SDIC play irreplaceable roles in water treatment, pool maintenance, aquaculture, and other fields.
Swimming Pool Disinfection Demand Supports Continued Expansion of the TCCA Market
The global market for swimming pool water treatment chemicals is approximately US$1.577 billion in 2025 and is expected to grow at a CAGR of 3.6%. TCCA, commonly known as "strong chlorine agent", has an available chlorine content as high as 85%–95%. It rapidly kills a wide range of bacteria, fungi, and spores in water. As a solid product, it is stable, easy to store and transport, and is currently the most widely used disinfectant for small swimming pools. Compared with traditional chlorine disinfectants, TCCA achieves a bactericidal rate of 99% at a concentration of 20 ppm. It gradually releases available chlorine in water, providing long‑lasting bactericidal effects and reducing the need for frequent dosing.
Large Aquaculture Countries Drive Strong Demand for SDIC and Other Disinfectants
In 2025, China’s aquaculture production exceeded 63 million tonnes, accounting for approximately 56% of the global total and firmly ranking first in the world. This vast industry scale creates rigid demand for disinfectants. TCCA and SDIC are widely used in aquaculture for water disinfection in fish ponds and shrimp ponds, purifying water quality, killing pathogenic microorganisms, and significantly reducing the incidence of diseases in fish and shrimp. SDIC is a white granular compound that serves multiple functions as a disinfectant, bactericide, industrial deodorant, and detergent. In practical applications, SDIC formulations are easy to handle and cause less irritation to aquatic organisms, making them favored by the aquaculture industry. Studies have shown that an appropriate concentration of TCCA (providing over 95% survival protection for zebrafish at 0.2 mg/L) can effectively control bacterial diseases, offering strong support for the healthy and sustainable development of aquaculture.
China Leads the World in Production Capacity, with Significant TCCA Export Advantages
Leveraging the world’s largest cyanuric acid production capacity, China occupies a dominant position in the manufacture of TCCA and SDIC. Leading enterprises such as Tai’an Huatian Chemical have formed an annual production capacity of 20,000 tonnes of SDIC and 15,000 tonnes of TCCA, with over 90% of their products exported to countries and regions including North and South America, Europe, and Southeast Asia. Against the backdrop of transformation from "pursuing output to green leadership", China — with its three major advantages of production scale, cost control, and a complete industrial chain — continues to supply high‑quality TCCA and SDIC disinfectant products for swimming pool disinfection, aquaculture, and other applications worldwide, contributing "Chinese solutions" to global public health security and the green development of aquaculture.
> Data sources: BESTS Consulting, QYResearch, Gongyan Industry Research Institute, CCTV.com, and other public information.
