ESTEN is a free online learning platform for environmental science and technology. It is operated by APEC Virtual Center.

APEC Virtual Center is an APEC specialized center established within the APEC Policy Partnership for Science and Technology Innovation

(APEC-PPSTI), and it has been leading environmental science and technology exchange among APEC economies.

ESTEN is the first and only online learning platform focused on environmental science and technology in the APEC region.

ESTEN strives to achieve sustainable development of the APEC region by:

1) Creating a free online learning environment that everyone can open and take courses

2) Supporting internationalization of environmental MSMEs by providing tools for B2B learning courses