Re-connect with old classmates CNG Alumni allows you to both re-connect with old classmates as well as enabling you to utilize the trusted Colegio Nueva Granada (CNG) environment to expand your professional network. Your Colegio Nueva Granada (CNG) Community By fully integrating with social networks, and cultivating a culture of helping and giving back, you will be amazed how vibrant your Colegio Nueva Granada (CNG) community is!