Aoteli tyres are produced under the umbrella of the siem thai group. The sentai group is a large private enterprise group that combines the manufacture of automobile tyres, wheeling, inner tire production, coil wire production, plastic processing, international trade and research and development of new technologies. The group sits in the chinese tyre village - guang yiu shui. The group comprises the sentai group ltd., shantung casters and china rubber company ltd., shantung deutsche wheels ltd., east camp china tai rubber co. Ltd., singtai group international trading corporation, qingdao west water international trading corporation, singtai group shintai inner tire plant, and the singtai group tires and steel lines company. There are 3,000 employees and 560 engineers and technicians, representing 800,000 square metres of land, with a total asset of $2. 8 billion. Over the years, the group has adhered to the business concept of "life by quality and development by effectiveness" and has focused on the business development concept of "strength by strength". Quality captures the market, the creation and development of enterprises are constantly taking place. The consortium now has an annual production scale of 2 million full steel-borne midday flats, 1 million car oscillating flats, 1 million car wheels, 1. 5 million butaki inner flats and 9,000 tons of bead wire. The leading products are the "3a" card, the "atta" card, the "atton" card, the "sentai" card and the "otley" card, among others. Tyre products are subject to mandatory certification by the united states dot, european ece and china cc. The group adheres to the management approach of "people-centred, science-based management, practical effectiveness and operational regulation", with the certification of the iso 9001 quality management system, the iso 14001 environmental management system and the ohasa 18001 occupational health safety management system. "3a" tyres are rated as "shandong's product", "a product of hard quality and satisfactory" and "3a" brands are known as china. The companies were rated as "advanced private enterprise in shandong province", "standing heavy credit company", "aaa-class credit company of the agricultural bank", "advanced national chemical enterprises", "consumer's satisfactory unit", "advanced quality management enterprise", and "advanced rubber industries in shandong province." after many years of development, the sentai group has established more than 130 distribution points throughout the country, forming a network of sales and services covering the entire country. In addition to meeting domestic demand, products are sold to more than 30 countries and regions such as the united states, canada, the middle east, south-east asia and hong kong。