KEYGREEN Co.,Ltd is a world leader in the grass protection mat and the Sigma mat is installed at over 80% of golf course in Korea. Committed to serving people with better products who are engaged in managing area, we continuously execute research and development. Such relentless endeavor will continue and that effort is reflected in our world famous Sigma Mat.

Through the incessant research and development of our research workers based on the consultation of on-site superintendent, Sigma Mat is proud to be a world-wide prestige in the area of grass protection mat.(International patents have been applied successfully)
We will keep studying and developing for the world's best prestige and toward the world's best prestige while always humbly hearing your bitter advice from the job-site.