Asian polycarbonate prices remained stable in the weekended Feb. 19 as tight margins kept producers from loweringoffers despite sluggish demand. general-purpose grade PC stable day over dayand week over week at $1,600/mt CFR China amid unchangedmarket fundamentals, and tradable indications heard at that levelthroughout the week.Similarly, extrusion-grade PC stable day overday and week over week at $1,610/mt CFR China amid unchangedmarket fundamentals, also considering tradable indicationsheard at that level throughout the week.In China, inventory pressure has built up among importers asmost downstream sectors only resumed operations this weekafter the Lunar New Year holidays, according to market sources. "Importers are looking to clear existing stock," a regionalproducer said. "But buying activity remains slow. "Weaker demand has weighed on sentiment, but regionalproducers have been reluctant to cut prices further, citingalready tight margins....