OAHOST, a conference management platform by scientists and for scientists, has been well known by its EMN conference series, Collaborative Conference on Crystal Growth and Collaborative Conference on 3D and Materials Research. We currently have meetings in Americas(USA, Mexico, Cuba), Asia (Japan, China, Korea, Dubai, Cambodia, Vietnam, Thailand, Malaysia, Bali Island ), Europe (Netherlands, Croatia, Spain, Germany, Hungary, Czech Republic, Austria, Italy, France, Turkey), New Zealand, Australia, Mauritius and all over the world.