Completed MahKing Clipper version on November 30, 1997.

    Established TankSoft Inc. on October 1, 1998 (Paid-in Capital: 300 Mil.Won).

    Completed MahKing Java version on April 15, 1999.

    Assigned as an Excellent Information Technology by Korean Government (Ministry of
      Information & Telecommunication) on September 22, 1999.

    Increased Paid-in-Capital to 2,250 Mil.Won on April 14, 2000.

    Certified as a Venture Enterprise(Technology Evaluation) by Korean Government(Small
      and Medium Business Administration) on May 10, 2000.

    Completed Mahking C++ version on July 1, 2000.

    Completed online game platform and commenced online service on February 1, 2001.

    Published a book, World Mahjong(234p,color,Korean), on August 22, 2002.

   Named the WMF(World Mahjong Federation) version(rule) of MahKing "World Mahjong"
      on January 15, 2003.

    Completed Japanese version(rule) of MahKing and named it "Japan Mahjong" on
      July 1, 2003.

    Completed "Solo Mahjong I" on January 25, 2004.

   Completed "Duo Mahjong" on February 26, 2004.

   Completed a prototype BREW-based mobile game "Duo Mahjong" on September 15, 2004.

   Concluded a contract to provide Nexon Japan Co., Ltd. with the library for the "Japan
      Mahjong" on June 15, 2005.

   Completed "Solo Mahjong II" on November 15, 2005.

   Concluded a contract to provide Playtech Limited with mahjong game libraries on
      May 24, 2006.

   Established an online gaming site [www.worldmahjong.net] for "World Mahjong" on
      January 5, 2007.

   Published a book, World Mahjong Essence(231p, color, English), on May 5, 2007.

   Completed Chinese version(rule) of MahKing and named it "China Mahjong" on
      July 1, 2007.

   Established an online gaming site [www.mahjong.net] for "China Mahjong" and
      "Japan Mahjong" on December 15, 2007.

   Completed the modification of three versions of MahKing to be playable in the internet
      web with Flash interface in April 5, 2008.