POSCO Holdings Inc. engages in the production of steel products. It operates through the following divisions: Steel, Engineering & Construction and Trading. The Steel division produces cold rolled, hot rolled and stainless steel products, plates, wire rods and silicon steel sheets. The Engineering & Construction division engages in the planning, designing and construction of industrial plants, civil engineering projects, commercial and residential buildings. The Trading division exports and imports steel products and raw materials. The company was founded by Tae-Joon Park on April 1, 1968 and is headquartered in Seoul, South Korea.

NS Tech Co., Ltd., part of Nissha Co., Ltd., is a company headquartered in Pyeongtaek, the South Korea, that engages in printing and publishing business activities.

Hefei Fengruilong Biotechnology Co., Ltd., established on 2005-11-25, Business scope includes research and development of biological products,Project Consulting;Medical device research and development;medical instruments(one type)Sales;Production of health care products,Sales;cosmetic,disinfection products,hygiene products(Antibacterial Agent Ointment Purification)Production(This is only available for branch offices)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Anhui Hongtai Food Co., Ltd., established on 2010-12-15, The business scope includes thermally processed pastries(baked pastry,Fermented Flour,Non-fermented rice products)production and sales of.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Zhuhai Junyijian Biomedical Technology Co., Ltd., established on 2018-08-30, The business scope includes the business scope recorded in the articles of association:medicine,Chinese herbal medicine,disinfection products,Healthy food,food,medical instruments,cosmetic,toothpaste,beauty products,Research and development of healthcare products,Production,Sales,Technology Transfer and Technology Consulting(Products involving licensed operation need to obtain a license before they can be operated);medical service,Health Care Services;Import and export of goods or technology(Except for the import and export of goods and technologies that are prohibited by the state or involve administrative approval).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Suzhou Tianling Chinese Herbal Pieces Co., Ltd., established on 2002-07-23, Business scope includes production and processing,Sales:Chinese Herbal Medicine,food;Primary processing of agricultural products;to plant,processing,Sales:Chinese herbal medicine;Sales:Daily necessities,Agricultural and sideline products,cosmetic,disinfection products(In addition to dangerous goods),medicine,medical instruments,Edible produce;Self-operated and agent import and export business of various commodities and technologies(Except for commodities and technologies that are restricted by the state to be operated by enterprises or prohibited from import and export);traditional Chinese medicine,Health product research and development and related technical consulting services;Health Information Consultation;road general cargo transportation.Exhibition Etiquette Service.Medical Mask Retail;Wholesale medical masks;Retailing of Class I Medical Devices;Wholesale of Class I Medical Devices;Retailing of Class II Medical Devices;Wholesale of Class II Medical Devices;Class III medical device business;daily mask(non-medical)Sales;Retailing of protective equipment for healthcare workers;Wholesale of protective equipment for medical staff;Sales of labor protection products;Sales of special labor protection products;internet sales(Except for products that require a license for sale);Import and export(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Nanjing Zhengliang Pharmaceutical Technology Co., Ltd., established on 2012-07-25, Business scope includes medical technology research and development and technical consulting;Intellectual property agency consultation;Class I medical device,Chemical Products,crafts,cosmetic,Daily necessities sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Chengdu Southwest Hospital of Traditional Chinese Medicine is a professional hospital integrating clinical, teaching, scientific research and health preservation with distinctive Chinese medical characteristics. Guided by the theories of the Yellow Emperor's Internal Classic and Treatise on Febrile Diseases, the hospital uses the dialectical thinking mode of traditional Chinese medicine, takes classical prescriptions and traditional treatment techniques as the basic means, and takes weight loss, difficult diseases and chronic disease management as the basic diagnosis and treatment goals. At the same time, the hospital adopted the original thinking of traditional Chinese medicine to conduct the mechanism and clinical research of related diseases and syndromes, innovated theories and methods, and created the diagnosis and treatment mode of difficult diseases in traditional Chinese medicine. At present, the hospital has 80 open beds, equipped with traditional Chinese medicine treatment room, decoction room, rehabilitation room, multi-function classroom, activity room, etc. It has more than 80 medical workers, including 4 chief physicians and deputy chief physicians, 2 high-level professional technicians, and 3 young and middle-aged technical backbones. The specialty involves the Department of Gastroenterology, the Department of Hepatology, the Department of Cardiovascular and Cerebrovascular Diseases, the Department of Chinese Medicine and the Department of Weight Loss. The team has more than 20 nursing staff, including 2 nurses in charge and 1 nurse. The team has solid classical theoretical foundation and rich clinical experience. Southwest Hospital of Traditional Chinese Medicine will adhere to the purpose of "inheriting Qihuang's medical skills and benefiting the well-being of the people", adhere to the mission of "seeking double happiness from virtue and art, and serving the people wholeheartedly" and the core values of "people-oriented, honest and harmonious, carrying forward the quintessence of China, pragmatic and innovative", give play to brand advantages, constantly improve the hospital's medical technology level and service ability, and meet the growing medical needs of the people.

Hefei Ruilian Biotechnology Co., Ltd., established on 2016-04-12, Business scope includes biotechnology research and development,Pharmaceutical Intermediates(In addition to drugs)research and development,Sales and related technical services,Beverage and food research and development and related technical services,Wholesale Prepackaged Food,Goods and technology import and export business(Products and technologies restricted or prohibited by the state are excluded).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Sichuan Yichuang Biotechnology Co., Ltd., established on 2016-08-19, Business scope includes biotechnology extension services;Bioengineering technology research and experimental development and technology promotion services.

Operates as a holding company with interest in providing business management services

Dangtu Longshanqiao Grain and Oil Industry and Trade Co., Ltd., established on 2000-07-26, Business scope includes grain and oil planting,processing,feed processing,Sales,food,Purchase and sale of agricultural and sideline products,Grain Purchase,vegetable planting,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Zibo Qidingli Patent Information Consulting Co., Ltd., established on 2013-06-03, Business scope includes patent technology consulting,to develop,to promote;advertisement plan(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)**