In 1916, Mono was founded in Monroe County, Michigan, with its founder as mechanic and entrepreneur August F. Mayer. In its early days, Mono made tire inflatable pumps for automobiles at that time, and later developed into Mono Automobile Equipment Manufacturing Company. Soon, a local Dodge car dealer, Charles S. McIntyre, became a partner of Mayer. Charles is an expert in the automotive industry and has made the company's self-lubricated single-tire inflatable pumps that are popular in the market. In 1926, Mayer and McIntyre shifted their business focus to the more promising driving comfort and control areas. In the same year, Mono launched the world's first passenger car shock absorber, which quickly replaced the originally clumsy frame springs. After nearly a hundred years of development and the accumulation of millions of customers, the Mono brand has become a well-recognized brand in the field of driving and riding control systems with its outstanding innovation capabilities and excellent product quality.

In 1964, Mono entered the European market; in 1972, the company expanded its territory to Japan, Australia and Mexico; in 1974, the company entered the South American market; in 1975, it entered Canada. In 1977, Tennac acquired Mono, which attracted Mono's development prospects in the field of innovation and helped it achieve innovation and development in many application fields such as passenger cars, trucks, and buses. In 1982, Monroe launched the first inflatable replacement shock absorber in the automotive service industry - Monroe Gas-Matic™; in 1999, Monroe launched the MONROE Reflex® shock absorber; in 2003, Monroe Quick-Strut® set of replacement Components were released; in 2011, Mono launched the OESpectrum® TM series shock absorbers.

Tennac not only enjoys a high reputation in the global after-sales market, but is also one of the largest manufacturers in the global driving and riding systems, suspension systems and parts original manufacturers. Tennac's unique Mono intelligent electronic suspension technology provides a variety of choices for automakers to adjust vehicle suspension systems, meet the different needs of customers and create a more comfortable and safe driving experience.

In addition to having professional technology and outstanding product performance, Mono also pays great attention to close contact and communication with industry professional talents. These professionals help Mono continuously improve its products and bring them to the market. This is another important factor in the enduring popularity of the Mono brand.