Monoammonium Phosphate (MAP) — Fire Grade

Mudu Town, Suzhou, Jiangsu Province, China. Founded November 1985 — one of China's oldest fire powder manufacturers. Claimed to be China's largest dry chemical extinguishing agent manufacturer: 60,000 metric tons/year capacity (five ABC powder workshops at 25,000 t/yr, one BC workshop at 5,000 t/yr). Products: ABC powder at various MAP concentrations (20%–92%), BC powder (20%–95%), ABC superfine powder. Certifications: CCC (Ministry of Public Security), EN615, UL, ISO 7202. Named Western OEM customers confirmed in company literature: Tyco, UTC, BRK, Ansul, Chubb. US brands including First Alert used Suzhou Wuyue's pink ABC powder in 2010–2014 models. Exports to US, Japan, EU, Africa, Middle East. The most strategically critical node in the global fire-grade MAP supply chain: a single 1985-vintage Suzhou factory supplies the dry chemical agent used in extinguishers sold under multiple major Western fire safety brands.

Luoding City, Guangdong Province, China (factory: Second Industrial Development Zone, Weidi Town). Administrative office in Foshan, Nanhai District. Produces ABC dry chemical powder (MAP-based, 50%–92% MAP content), BC powder, and Purple-K (potassium bicarbonate). Branded grades: ABC90 and ABC75. Certifications: UL (USA), EN615 (Europe), CCC (China), ISO 9001-2015. Exports to Southeast Asia, East Asia, Middle East, South America. Both manufacturer and trading company with own factory. Luoding City is in the Yun-Gui Plateau foothills of western Guangdong — a secondary industrial cluster distinct from the Pearl River Delta.

Zhaoqing, Guangdong Province, China. Produces ABC dry chemical powder (MAP-based, up to 90% MAP content); UL-listed FSHH90 powder. Production capacity: 2 million fire extinguishers/year; 20,000 metric tons/year dry chemical powder. 90% of revenue from overseas exports; sells to 20+ countries. Certifications: CE, CCC, ISO, UL. A major export-oriented Guangdong producer of both ABC powder and complete fire extinguisher assemblies — one of China's most outward-facing fire safety chemical manufacturers. Zhaoqing is on the Xi River west of Guangzhou.

Marinette, Wisconsin-based fire suppression products brand; subsidiary of Johnson Controls (NYSE: JCI). Produces FORAY ABC dry chemical — monoammonium phosphate base with proprietary additives (yellow color), manufactured by "an exclusive chemical process." The sole Ansul ABC agent providing Class A fire suppression capability. Marinette, WI facility (One Stanton Street) produces dry chemical fire suppression agents and systems. Import data suggests Ansul imports components and potentially base MAP from China (confirmed China import shipments in Panjiva database). Suzhou Wuyue's customer list explicitly includes "Ansul" — suggesting Ansul may source base MAP powder from Suzhou Wuyue and reformulate/additize into FORAY at Marinette, or alternatively that the relationship pre-dates a switch to domestic sourcing. Ansul also makes halon, Purple-K, and CO2 systems; FORAY is the ABC powder brand. Johnson Controls acquired Tyco International (2016) which included Ansul.

Major North American food phosphate producer; taken private by One Rock Capital Partners in February 2020 for $932M. Manufacturing in USA, Canada, Mexico, and China. Primary products: sodium acid pyrophosphate (SAPP), dicalcium phosphate, monocalcium phosphate, STPP, and specialty phosphate blends for baked goods, dairy, meat, and beverage applications. Key US meat industry food phosphate supplier. Innophos produces specialized phosphate blends that are performance-tested for specific processed meat applications (curing brines, tumble marination, emulsification).

Largest US manufacturer of custom fire apparatus (pumpers, aerials, rescue trucks, tankers, quints). Subsidiary of Oshkosh Corporation. Appleton WI plant produces approximately 30% of all US fire apparatus. Antitrust scrutiny in 2023 for market concentration with REV Group and Rosenbauer.