The provided search results do not directly mention a company named CGPN with the URL http://www.cgpn.fr. However, based on general practices, a company with such a URL might be involved in various sectors such as technology, consulting, or energy, similar to other CGPN entities like Central Government Partnership Network or CGNP (China General Nuclear Power Corporation). Without specific details, it's challenging to define their services or target audience. Typically, a company's unique selling proposition (USP) would be identified through its innovative offerings or competitive advantages, which are not specified here.