HT-1 is an Mg-Al based inorganic compound having a extremely high transparency, despite of being compounded in resin. Because of its high anion supplementing ability such as chlorine, HT-1 is used for Ca/Zn stabilizers, chloroprene rubber, halogen-containing resin. HT-P is used as residual polyolefin polymerization catalyst removal (neutralizing agent) and for heat retention agents for agricultural films.