Xinduo Group (新多集团股份有限公司) was founded in 1998 in Yongkang, Zhejiang, a city known as China’s door capital, and became a joint-stock company in 2024. From a 230-mu site it designs, manufactures and exports anti-theft security doors, insulated fire doors, armoured doors, building doors, villa doors, wooden doors and smart locks under the Xinduo and Puruiya brands. Its insulated entrance fire doors hold fire product certifications 5982026ZY300104 and 5982026ZY300088 from the Tianjin Fire Research Institute of the Ministry of Emergency Management.