Eden Project” opened in Qingdao, China Membrane roof installation of ETFE film

(Tokyo headquarters: Setagaya-ku, Tokyo; Osaka headquarters: Yodogawa-ku, Osaka; President: Yumi Nomura), a company involved in large-scale membrane structures (tent structures) and civil engineering and logistics materials, has participated in the installation of a biomechanical membrane roof using ETFE film at the newly established Eden Project in Qingdao, Shandong, China, through its Chinese subsidiary, Shanghai Taiyo Kogyo Membrane Co. (Shanghai, China) has participated in the installation of a biomechanical membrane roof using ETFE film at the new “Oriental Eden” project in Qingdao, Shandong Province, China.

Eden Project Qingdao is a large-scale tropical biome facility planned as the first overseas expansion following the world-class tourist facility Eden Project, which opened in Cornwall, England in 2000. Taiyo Kogyo was in charge of the design, manufacturing, and installation of the biome membrane roof using ETFE film, which is lightweight, highly translucent, and weather resistant, and is attracting attention as a sustainable building material that enables large-scale, highly flexible architectural design while reducing environmental impact. Taiyo Kogyo also constructed a state-of-the-art sauna facility using ETFE film at the Expo ’70 sauna “Taiyo no Tsubomi” at the 2025 Japan International Exposition (Osaka/Kansai Expo).

The membrane roof of this facility is 192 meters long, 135 meters wide, and 55 meters high, covering a total of 30,000 square meters. The structure consists of 931 triangular ETFE pneumatic cushions with smooth curves that blend in with the surrounding natural environment. In addition, the transparency of the ETFE creates a light space, and the 108 automatic windows and 143 ETFE cushion exhaust vents allow for efficient natural ventilation and environmental conditioning.

Within the biome, visitors can experience a fusion of nature, science, art, education, and entertainment, including one of the world’s largest indoor rainforests and the world’s highest indoor waterfall. Visitors can learn about coexistence with nature and the importance of water resources from a new perspective through interactive exhibits and productions.

Location	Qingdao, Shandong, China
DESIGN	GRIMSHAW
Structural Design	CCDI GROUP
Design	CCDI GROUP
Prime contractor	Qingdao Oriental Eden Cultural Tourism Development Co.
Membrane material, membrane area	Biome: ETFE film, 30,000 m2 Sunshade structure: PTFE membrane, 2,000 m2
Membrane construction period	Early 2021 – End of 2024 (prolonged due to new corona infection)
Facility opening	June 28, 2025

China subsidiary wholly owned by Taiyo Kogyo Corporation

Founded: 2002
General Manager: Long Wang
Location: Shanghai, China

Taiyo Kogyo is a leading manufacturer of large membrane surface structures that are economical, easy to install, translucent, and well designed. Under the corporate philosophy of “Unlocking the infinite possibilities of membranes to deliver an inspiring and comfortable environment to our customers. Under the corporate philosophy of “We will bring excitement and a comfortable environment to our customers by exploiting the infinite possibilities of membranes,” TSP Taiyo has been supporting the safety and security of society by utilizing the characteristics of light and strong materials to expand its business in various fields including construction, as symbolized by the roof of the giant dome, civil engineering, logistics, and environmental fields.
Together with group companies such as TSP Taiyo Corporation, which provides event consulting services, and ACTIO Corporation, which manages facilities, we are working to “make the world softer and the future warmer. We aim to “make the world soft and the future warm. We aim to “soften the world and warm the future.