Some of the most notable week-on-week movements come from the platinum group metals (PGMs), platinum and palladium. The latter is a byproduct of mining the former and is not unusual to see both move in price at the same time, although this time around it’s down to pure market dynamics. Per EnergyTrend tracking, China has 19 polysilicon companies still producing polysilicon, while another 15 are shuttered or, to put it politely, ‘undergoing maintenance.’ The high-purity quartz price spike and shortage of the past year has continued to fade away, with prices now down at $14,000 per ton for Chinese-produced inner-grade HPQ, while 36-inch Czochralski crucibles are at $2,000 apiece. Natural gas prices increased slightly due to a combination of oversupply…