Key Reasons for Sustained High Prices of Calcium Hypochlorite (Bleaching Powder) in 2026

Key Reasons for Sustained High Prices of Calcium Hypochlorite (Bleaching Powder) in 2026

The cost structure of calcium hypochlorite is primarily driven by the prices of liquid chlorine and hydrated lime. Compounded by factors such as environmental regulations, hazardous chemical controls, and global export demand, the market supply-demand balance remained tight throughout 2026, preventing prices from falling. This situation was driven by the following four major factors:

I. Rising Upstream Raw Material Costs (Core Factor)

1. Unstable Liquid Chlorine Supply and Firm Prices

Calcium hypochlorite production requires chlorine gas, primarily sourced from chlor-alkali plants. Following a major liquid chlorine leak in Tianjin in late October 2025, a comprehensive safety overhaul of the entire chlorine industry chain was launched; consequently, many chlor-alkali enterprises reduced operating loads or suspended external sales of liquid chlorine.

2. Rising Costs of Hydrated Lime (Calcium Hydroxide) and Energy

Costs associated with limestone mining and calcination increased, while rising expenses for electricity and steam consumption further drove up overall production costs.

II. Supply-Side Contraction: Constrained Capacity and Controlled Operating Rates

1. Significantly Tightened Environmental and Safety Standards (Regulatory Crackdown Triggered by the Late-2025 Leak)

Calcium hypochlorite is classified as a hazardous chemical and a strong oxidizing agent. The Ministry of Emergency Management conducted nationwide safety inspections of chlorine-related enterprises, implementing rigorous reviews for all companies involved in the production, storage, and transportation of chlorine gas.

2. Extremely Long Approval Cycles for New Capacity

The environmental and safety assessment process for hazardous chemical projects takes over a year to complete. Consequently, virtually no new capacity came online, resulting in limited short-term supply elasticity; prices were thus prone to sharp spikes whenever demand rose.

3. Inherent Safety Constraints in the Production Process

Calcium hypochlorite decomposes easily at high temperatures, placing a limit on how much production speeds can be increased. During the hot summer months, some plants were forced to reduce operating loads, further curtailing output.

III. Strong domestic and international market demand drives continued inventory depletion

Robust export orders (key foreign trade sectors)

Demand for disinfection products—spanning municipal water supply, swimming pools, and aquaculture—continues to grow in emerging markets such as Southeast Asia, Africa, and Latin America. Overseas buyers typically stock up in bulk ahead of the rainy season.

IV. Rising additional costs related to logistics, packaging, and compliance

Regulatory requirements regarding the qualifications for transporting and transshipping liquid chlorine via tanker trucks have tightened significantly, resulting in longer transit times and increased freight costs.

If your company has any purchasing plans, please confirm order two months in advance to facilitate production scheduling. For any requirements, please contact TIANJIN SINO CHEMICAL CO.,LTD