US spot ethylene was marginally changed this week, assessed Friday at 62.75-63.25 cents/lb FD USG, moving up a quartercent week on week in relatively quiet markets that showed limited trading activity. Production issues at Flint Hills Resources’ petrochemical complex located in Port Arthur, Texas sparked market talk on Tuesday and Wednesday -- The company reported unexpected shutdowns of the ethylene and propylene refrigeration compressors in the late afternoon on March 1, according to a company filing with the Texas Commission on Environmental Quality.
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