The history of the team can be traced back to early 2001, when local
Macoto Bank started to sponsor
Taiwan Major League's (TML)
Taipei Gida, taking over from the original sponsor
Sampo Corporation. After TML's merger with CPBL in early 2003, Macoto Bank decided to run one of the 2 absorbed TML teams and the new team
Macoto Gida (誠泰太陽) was formed accordingly along with its sister team
First Financial Holdings Agan. During the merger draft Macoto Bank picked the bulk of Macoto Gida's players from
Taichung Agan and
Chiayi-Tainan Luka, but not the original
Taipei Gida. Macoto Bank went on running and changed the team's
mascot to animal-style
cobras following CPBL's regulations in early 2004. In 2004 and 2005 the
Macoto Cobras was head-coached by
Tai-Yuan Kuo, a legendary Taiwanese
pitcher who played for the
Seibu Lions for 13 years. In 2005 this team competed with
Sinon Bulls in the CPBL championships, but was defeated 0-4. After the merger of Macoto Bank into
Shin Kong Financial Holdings in January 2006, the Shin Kong Financial Holdings finally did not absorb the Cobras due to disagreement on purchase prices as well as its lacking willingness. So during the 2006 season it was Macoto Bank's original chairman Lin Cheng-i(林誠一) and his son, Macoto Bank's original
CEO Lin Chih-kuang( 林致光) who used their own money to run this team. Unable to afford such burden, after the 2006 season ended the Lins have been trying to sell this team. The
Foxconn Corporation was once reportedly interested, but finally in February 2007 it was the
Taoyuan-based Jiuhe (九禾) Corporation which came to the takeover agreement with the Lins. However, on March 5, 2007 this takeover was disapproved by the CPBL General Managers committee. At the end of 2007 season, rumors about the team's sale again surfaced. It is announced on February 4, 2008, that
dmedia System Co., Ltd. is the new owner of the team. On October 8, 2008, T-REX CEO Shih Chien-shin was called to the local district attorney's office along with the team's general manager, spokesperson, and three other players for alleged game-fixing. On the following day, CPBL announced that it is freezing T-REX's membership pending investigation. On October 23, 2008, CPBL announced that Dmedia T-REX has been expelled from the league. ==Records==