HKEX (00388.HK) -2.600 (-0.593%) Short selling $322.93M; Ratio 13.444% announced today (23rd) that it had signed a Memorandum of Understanding (MOU) with Guangzhou Emissions Exchange (CEEX), Shenzhen Green Exchange (SGE), and Macao International Carbon Emission Exchange (MEX) to cooperate in accelerating the carbon markets and green finance ecosystem development across the Greater Bay Area (GBA).Under the MOU, the four exchanges will work closely to explore new opportunities in carbon markets and green finance. This collaboration aims to foster deeper dialogue and facilitate the exchange of expertise among the exchanges and markets participants, supporting the development of a robust and vibrant green finance ecosystem across Hong Kong and the GBA.(HK stocks quote is delayed for at least 15 mins.Short Selling Data as at 2025-09-25 16:25.)Related NewsG Sachs Lifts HKEX's TP to HKD544; Mkt Underestimates Southbound Trading Activity