Asian acrylonitrile-butadiene-styrene prices rose $20/mt on the week as producers increased offers in response topersistently high production costs, estimated to be above $1,500/mt due to elevated feedstock prices.Market discussions were muted, with participants mostlyaway in Shanghai for the Chinaplas 2024 conference this week,trade sources said, adding that sellers were also holding higherlevels ahead of the May Day holiday.May-arrival sell indications were heard at around $1,480/mt CFR China on April 24, with the $1,530-$1,570/mt range CFRNortheast Asia heard post-trading session, market sources said.Trades were also heard after the trading session April 19 in the$1,490-$1,500/mt range CFR NE Asia, but these could not beverified.Post-trading window, sell indications for CFR Southeast Asiawere heard at around $1,530/mt, market sources said."SE Asia [prices] may be higher than [those of] China," atrader said.In upstream markets, styrene...