. Jiangsu Chengyin Technology Co., Ltd. (referred to as “Chengyin Technology”) specializes in technologies, products, and services related to seal authentication and document traceability and anti-counterfeiting. The company has established a vision of eliminating fake seals and forged documents worldwide, building a traceability and anti-counterfeiting platform, and contributing to the development of a social integrity system. The company’s flagship product is Chengyin Zhenzhang—a smart seal designed specifically for tracing the results and processes of seal usage. It is an “intelligent traceability seal” based on “inkmark recognition” technology. The smart seal market has begun to develop over the past two years and represents an emerging market segment that has yet to see a well-established competitive landscape among various companies. However, Chengyin Technology’s “inkmark recognition” technology is a completely new and innovative approach. Currently, the terminal products and system platforms of Chengyin Zhenzhang have completed R&D and have entered the stage of market promotion and sales. Inkmark recognition technology is a domestic and **innovative** technology with no previous precedents. The company has already filed multiple applications for invention patents or utility model patents. Chengyin Zhenma is another product currently under development—a document anti-counterfeiting technology based on document medium characteristics, capable of recording and identifying unique features of paper documents. The product consists of both a terminal device and a software service system, utilizing medium-characteristic recognition technology. It can be applied to daily document management in government agencies, enterprises, and public institutions, providing anti-counterfeiting, identification, and authentication capabilities both online and offline, and holds great potential for future application. The company is located in Changzhou City, Jiangsu Province—a historic ancient city in the picturesque Jiangnan region renowned for its outstanding people and beautiful scenery. Welcome to the website of Jiangsu Chengyin Technology Co., Ltd. Our company is situated in Changzhou City, a culturally rich ancient city with over 3,200 years of history, boasting numerous scenic spots and historical sites. Our specific address is Room 1805, Building 2, Tianning Times Square, Tianning District, Changzhou, Jiangsu Province. The person in charge is Tu Weiping. Our main business includes intelligent seal management platforms, anti-copying QR codes, smart locking seals, and all-in-one printing and sealing machines. Registered capital of the company: RMB 2 million to 3 million. We supply intelligent seal management platforms, anti-copying QR codes, smart locking seals, all-in-one printing and sealing machines, and other products, truly creating value for our customers, saving costs, and achieving “sustainable equipment and worry-free operation!”