SHANGHAI, Jul. 22 (SMM) -- Market sentiment in downstream EMM market was still sluggish and operating rates EMM producers continued to linger around 50%, so demand for selenium dioxide was still soft. In addition, offers of selenium powder were firm in domestic market, so support from costs is still available for selenium dioxide. SMM expects that prices for selenium dioxide will be around RMB 770/kg and prices of selenium powder will be around RMB 1,050/kg in the following week.