楓邑國際的公司總部位於臺中市豐原區中心商業區（CBD）之「信義街」與「府前街」交叉路口，鄰近廟東商圈。
- 建物名稱：芝柏信義大廈（GP Xinyi Building）
- 座向：座東北朝西南
- 地址：420003 臺灣臺中市豐原區信義街 60 號
- 建物登記用途：住商用
- 大廈樓層：地下 1 層、地上 8 層（含頂層附屬樓塔）
- 電梯：有（無第 4 層）
- 樓梯：雙向交叉式安全逃生梯
總部所在的芝柏信義大廈，是由知名建築師「趙建中」教授所規劃設計的作品，建案原名「星鑽信義大廈」，後來由業主芝柏建設公司變更為現名。除了信義大廈，趙建築師的代表作品還包括了：臺南中小企銀總部、中央研究院地球科學研究所、彰化縣立文化中心、高雄市立婦幼醫院、臺灣中小企銀興中分行與二林分行、嘉義師範學院圖書館及視教中心、國立自然科學博物館籌備處、東海大學綜合教學大樓與中原大學教學大樓等等。
- Building Name: GP Xinyi Building
- Orientation: facing Southwest
- Address: 60, Xinyi Street, Fengyuan District, Taichung City 420003, Taiwan
- Building Registration: for both "commercial building" and "residential property" utilisation
- Number of Floors: 1 basement and 8 floors (including the top floor tower)
- Elevator: Yes (due to "Tetraphobia", the floor number 4 is skipped)
The GP Xinyi Building was designed by the famous Taiwanese architect and also a university professor: Mr. Chao, Chien-Chung (also known as Prof. Bowarch Chao). It became the headquarters of the Mapleton International Corp. since 2014. Originally, this building was named "DiamondStar Xinyi Building", but it has been changed to "GP Xinyi Building" by the builder: GP Construction Co., Ltd. In addition to the Xinyi Building, Prof. Bowarch Chao's representative works includes: the headquarters of the King's Town Bank, Institute of Earth Sciences of Academia Sinica, the Cultural Affairs Bureau of the Changhua County Government, Kaohsiung Municipal United Hospital, Xingchung Branch and Erlin Branch of the Taiwan Business Bank, National Chiayi University Library, Preparatory Office of the National Museum of Natural Science, Teaching Building of the Tunghai University, Teaching Complex Building of the Chung Yuan Christian University, etc.