The Green Exchange, accessible at http://www.greenexchange.io, is not directly described in the search results, but it seems to be confused with other entities like Green Exchange, PBC and The Green Exchange (TGX). However, based on similar entities: - Green Exchange, PBC aims to create a dedicated "green" equities exchange, focusing on sustainable governance and ESG standards[1]. - The Green Exchange (TGX) is a financial exchange dedicated to sustainable finance in emerging markets, offering trading platforms and pre-listing services[3]. Their unique selling proposition is promoting sustainable finance and responsible investment practices.