爾間公司以中國投資房地產為主，當中喺華北、華東同華南有較多項目，較大型嘅包括上海天安中心、大連天安國際大廈、深圳天安數碼城等。
The company mainly invests in real estate in China, and has a large number of projects in North China, East China and South China, including Shanghai Tianan Center, Dalian Tianan International Building, Shenzhen Tianan Cyber City, etc.