Nihon Parkerizing Co., Ltd. Nihon Parkerizing Co., Ltd. manufactures and sells metal surface treatment chemicals; rust preventive oils; rolling oils; paints; industrial cleaners; and electroless nickel plating liquids, while also providing toll processing for rust prevention and heat treatment; engineering services for designing and installing metal surface treatment and coating equipment; and other operations including building maintenance and solar power generation. The company operates through three main segments—Chemicals, Toll Processing, and Engineering—serving industries such as automotive, electronics, construction, and aerospace with solutions for cleansing, rust prevention, paint base preparation, lubrication, and decoration at the nanometer level. Founded on July 12, 1928, and headquartered at 16-8 Nihonbashi 2-chome, Chuo-ku, Tokyo, Japan, Nihon Parkerizing maintains 45 locations across Japan, including technical centers, sales offices, and factories, alongside a global network with subsidiaries in countries including India, Indonesia, China, Belgium, and Vietnam. Recent developments include the completion of a simplified share exchange to acquire 100% ownership of Parker Processing Co., Ltd. in July 2024; announcement of a new plant construction in Chennai, India in June 2025; ongoing share repurchases and a dividend increase for the fiscal year ending March 31, 2025 in August 2024; and updates to its Standards on the Management of Chemicals Substances Contained in Products to version 2.80 in August 2025.