Your Dreams, Our Challenge Sustainable silicas, advanced performance. Established in 1948, AGC Si-Tech Co.,Ltd. now provides unique silica products and material solutions for our customer’s various demands. Our main products provided to worldwide cosmetic industries are SUNSPHERE, synthetic amorphous silica beads. SUNSPHERE are made from silicon dioxide which is abundant in nature via our original process. They have a perfectly spherical shape, and are safe and environmentally friendly. SUNSPHERE silica beads come in a wide range of particle size (μm) and oil absorption properties to suit a variety of proposed applications.