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* Korean products through only domestic development All of Manjirak products are produced by technical development of Korean Manjirak as well as safe and excellent products are made by continuous research and development. - 13 domestic patents and 3 international patents – The Korean Intellectual Property Office *Creative spirit for education We are making an effort to produce educational clay which is the most practical and essential for the creativity development of from elementary students to university students, according to the educational - 870 elementary schools, 54 middle schools, 24 high schools and 12 universities in the whole nation (on the basis of 2009) *Increase of reliability through the national certification Safety, reliability and superiority of products are recognized by national public institutions such as Ministry of Knowledge Economy, Small and Medium Business Administration, Ministry of Environment, etc. In addition, we are continuously making an effort for the national business of R&D through the valuation focusing on technology. - Ministry of Knowledge Economy - Small and Medium Business Administration - Korea Industrial Technology Association *Voluntary effort for environment Manjirak is doing the best to use only materials which are not harmful for the body and reduce waste materials of completed product for the protection of environment through the voluntary agreement with the Ministry of Environment. Ministry of Environment.