The US polycarbonate market remained stable through theweek ended June 18. extrusion grade and injection gradepolycarbonate at 90 cents/lb and 95 cents/lb ($1,984/mt and$2,094/mt), respectively, June 18, unchanged compared withJune 12.Demand was described by market participants as holdingstable on week, with lackluster buying appetite persisting.This comes despite SABIC's announcement that it wouldbe proceeding with plans to close its Tampico polycarbonateproduction facility.Polycarbonate market participants maintain that continuedweak demand has offset the potential supply impacts, withinventories described as high enough to leave pricing unaffected.The assessment considered indications that US pricingremains at a $200-$250/mt premium to Chinese pricing, which last assessed steady on the day and week at $1,810/mt.Sources attribute comparatively higher feedstock pricingin the US to a typical premium of $200-$250/mt over Chinesepricing. The regional spread has narrowed slightly, in linewith the...