This document summarizes energy efficiency strategies for Building 2 of Mingrun Square in Chongqing, China. It discusses the building's orientation, passive design strategies like overhanging slabs and vertical louvers to reduce solar gain, and active strategies like a ground loop heat exchanger and solar panels. It also covers super insulation techniques to minimize thermal bridging and heat loss/gain, such as using double glazing, aluminum profiles with thermal breaks, and avoiding gaps in insulating layers. The goal is to reduce energy usage through effective solar control and insulation.