Leedap certificate has a high gold content in the construction industry. This is an international certification, and the holder will have his own serial number, which can be found on the whole network. Obtaining the LEEDAP certificate requires specialized research in a specific field. The major designated by LEED is similar to that of graduate school, so in order to obtain higher-level professional knowledge, in-depth study is needed, so the gold content of the certificate is really high.