Some better-ranked stocks in the basic materials space are Ingevity Corporation NGVT , Westlake Chemical Corporation WLK and POSCO PKX . Click to get this free report PPG Industries, Inc. (PPG): Free Stock Analysis Report Westlake Chemical Corporation (WLK): Free Stock Analysis Report Ingevity Corporation (NGVT): Free Stock Analysis Report POSCO (PKX): Free Stock Analysis Report To read this article on Zacks.com click here. Post the mayhem caused by the recent natural disasters, the company doesn't anticipate any further decline in the level of raw material cost inflation for the balance of this year.