- 1971 | Sebang Trade Co., Ltd. founded |
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- 1972 | Obtained export license from Ministry of Commerce and Industry |
- 1973 | Development of tennis balls started An area of 26,000㎡ for a factory in Bucheon purchased production of tennis balls started |
- 1975 | Building of factory in Bucheon completed |
- 1976 | Approved by United States Tennis Association (USTA) and Korea Tennis Association (KTA) Started production of woven felt tennis balls |
- 1977 | Started production of needle felt tennis balls |
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- 1978 | Entered technology alliance with Irumagawa, Japan for laminated balls of soccer, volleyball, basketball and handball Changed business name to Naasau |
- 1980 | Approved by Fédération Internationale de Football Association (FIFA) |
- 1980 | Selected as an official match ball of the 2nd divison of Argentine professional soccer leauge |
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- 1982 | Entered technology alliance with ALDILA, USA for rackets Started production of table tennis rubber |
- 1983 | Graphite racket developed Approved by International Tennis Federation (ITF) Approved by Fédération Internationale de Volleyball (FIVB) Approved by International Handball Federation (IHF) |
- 1984 | Approved by Korean Industrial Standard (KS) |
- 1985 | Won Korean Industrial Standardization Award from Korea Institute for Industry |
- 1986 | Selected as official tennis ball for United States Professional Tennis Association (USPTA) Selected as official balls for tennis, soccer, handball, volleyball in 1986 Seoul Asian Games 1986 |
- 1987 | Designated as excellent sporting goods manufacturing company by Ministry of Commerce and Industry Selected as official tennis ball of 1988 Seoul Olympic Games |
- 1988 | Selected as official tennis ball of Australian Open |
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- 1989 | PT. Nassau Sports Indonesia established Designated as Korean World-Class Product manufacturing company by KOTRA |
- 1990 | Building of PT. Nassau Sports Indonesia’s factory completed Selected as official tennis match ball for Australian Open Approved by Korean Industrial Standard (KS) (PT.NASSAU SPORTS INDONESIA) Won Industrial Service Medal from Korea Trade-Investment Promotion Agency (KOTRA) |
- 1993 | Selected as official soccer match ball of KFA soccer leagues |
- 1995 | Selected as official soccer match ball of KFA soccer leagues |
- 1997 | Approved by International Basketball Federation (FIBA) |
- 2002 | Approved by International Handball Federation (IHF) Selected as official tennis ball for 2002 Busan Asian Games Selected as excellent sporting goods manufacturing company by Ministry of Culture, Sports and Tourism |
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- 2008 | Official sponsor to Gundes Liga (Army soccer league) for celebrating 60th anniversary of Korea's independence Selected as official tennis match ball of Tennis Association of Sport for All |
- 2009 | Selected as official soccer match ball of KFA, FA CUP, K3, U and Youth leagues Selected as Quality approved manufacturer by Research Institute of Sports Science, Korea Sports Promotion Foundation |
- 2010 | Selected as an official match ball of Soccer Associations of Seoul-si, Gwangju-si, Kangwon Province, Daejeon-si and Southern Gyeonggi province |
- 2011 | Official sponsor to Gwangju Sangmu Football Club |
- 2016 | Wining Shot became the official match ball of several amateur tennis games |
- 2017 | Selected as official soccer match ball of KFA, FA CUP, K3, U and Youth leagues. |
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- 2018 | Entered into contract for soccer balls with KFA for their commercialization business Launched sporting facility business Entered into MOU with National Olympic Committee Kenya Entered into MOU with The Association For International Sport for All (TAFISA) New brand launched in collaboration with Dellanuri Entered into a Marvel character licensing agreement |
- 2019 | Selected as official match balls of K5, K6 and K7 of KFA Entered into sponsorship agreement with 9 city and provincial soccer associations out of 16 (Gyeonggi, Chungbuk, Chungnam, Gyeongbuk, Gyeongnam, Jeonnam, Daejeon, Busan, Ulsan) Selected as official match ball of the Little K league of National Youth Soccer Education Service (NYSES) |
- 2020 | Selected as official soccer match ball of KFA, K3 and K4 leagues Entered into agreement with Korea Amateur Tennis Organization (KATO) for official match ball |