Atom (Langfang) Paint Co., Ltd.
- Production and export of traffic marking paint in a Chinese-Japanese joint venture. Description of production process and company details.
- http://www.atompaint.com

Langfang Triple Well Chemicals Co.
- Manufacturers of levulinic acid, butyl levulinate, diphenolic acid, dimethyl disulfide, methane sulfonic acid, and methane sulfonyl chloride series chemicals.
- http://www.finechemicals-china.com/