In Year 2012, two prominent discoveries in Particle Physics, namely the experiment on neutrino mixing angle (non-zero theta 13) carried out in the Daya-bay near Hong Kong and the discovery of Higgs-like particle at Large Hadron Collider (LHC) in Switzerland, have sparked a new wave of research interest in Elementary Particle Theory and String Cosmology. In particular, the discovery of Higgs-like particles allows particle physicists to take a leap in confirming the existence of Higgs boson which is the last missing particle in the Standard Model of Particle Physics. IAS program on Particle Theory is a pioneer program in Hong Kong which invites particle theorists around the world to gather and investigate on their recent findings. Through exchange of new ideas and collaborations, the program aims to take the lead in forging a strong research community of Particle Physics in Hong Kong.