RIHKS IMPORT & EXPORT PTY Research Chemicals 4U a daughter company of RIHKS IMPORT & EXPORT PTY produces, transports and sells variety of research chemicals and mining chemicals. We are a South african based company, offering top quality services in the industry. Why us? It’s easy: High quality of products. Purity of all the substances is at least 99% giving guarantee of non-presence of any extraneous impurity. Professional shipping to almost any spot of the world. We control or guide you ...