Shenzhen Happy Pharmaceuticals ltd. Was established in 1999 as a manufacturer of pharmaceuticals and fine chemicals. We specialize in synthesizing and phenylpropanolamine series products, like phenylephrine, etilefrine, synephrine. Chemical process development is our core competence. Due to our growth, we have increased capacity with a new manufacturing facility in Weifang in the Shandong province. This facility has been upgraded with modern equipment and improved process technology under GMP guidelines.