Shenzhen New Nanshan Holding Group Co., Ltd. (abbreviation: "NEW SUM") is affiliated with China Merchants Group and serves as the manufacturing management platform under China Nanshan Development (Group) Incorporation (hereinafter referred to as "China Nanshan Group"). NEW SUM operates under the business philosophy of "Intelligent Manufacturing for the Future, United for Win-Win Outcomes" and the core value of "Craftsmanship in Manufacturing, Quality as the Foundation." It is committed to becoming China's leading comprehensive provider of high-end equipment and steel structure manufacturing solutions. It currently has five manufacturing enterprises under its umbrella: Sembawang, Huanan Building Materials, Shanghai Matsuo, Changshu Yahgee, and Chixiao Technology. Its business covers industries such as offshore engineering equipment, ship outfitting, high-end steel structures, modular buildings, and metal sandwich panels.

NEW SUM has a long history of development. From 1984, when Chixiao Technology filled the domestic technical gap in sandwich panels and served the infrastructure boom in the special economic zone, to 2003, when Huanan Building Materials ended the long-term reliance on foreign imports for ship interior materials; from 1994, when Sembawang emerged to break through bottlenecks in South China Sea oil development, to 2006, when the acquisition of Shanghai Matsuo propelled Chinese steel structures into the international high-end market; from 2003, when "Archispace Modular Houses" provided temporary construction site supporting products needed for China's major infrastructure development, to 2011, when Changshu Yahgee promoted the localization of modular buildings—NEW SUM has consistently upheld the original mission of "What the nation needs, Nanshan can provide," gradually building an industrial matrix covering green building materials in offshore engineering equipment, ship outfitting, high-end steel structures, modular buildings, and metal sandwich panels, in line with China's manufacturing powerhouse strategy and development trends.

After years of development, Sembawang enjoys high recognition and brand influence in the field of offshore oil engineering jackets; Huanan Building Materials in ship outfitting; Changshu Yahgee in modular buildings; Shanghai Matsuo in overseas steel structures; and Chixiao Technology in metal sandwich panels. With superior product quality and delivery timelines, NEW SUM's business now spans the globe, establishing long-term cooperative relationships with customers in more than 40 countries across East Asia, Southeast Asia, Europe, Africa, the Middle East, Australia, North America, and South America. International business has surpassed domestic business, with its proportion increasing year by year, and operating performance maintaining stable growth for many consecutive years.

NEW SUM is a new force in China's high-end equipment and steel structure manufacturing. Its subsidiaries Shembawang, Huanan Building Materials, and Changshu Yahgee are National High-Tech Enterprises; Sembawang is a national-level Specialized, High-end and Innovation-driven "Little Giant" enterprise, a Shenzhen "Specialized, High-end and Innovation-driven" SME, and ranked among the Top 500 Manufacturing Enterprises in Guangdong Province in 2023; Huanan Building Materials is a Shenzhen "Specialized, High-end and Innovation-driven" SME and a Shenzhen Manufacturing Single Champion Enterprise.