tldjr, just noticed your older post.
Only thing I know about new PLKC is what came from the old DnCtech.com website. Old website link doesn't work anymore but I'd previously posted some of its contents in the iBox.
DnC Tech website showed "Revenue": Korean Won 6,566,953,038 in "2006".
My conversion to US dollars = $7,214,054.
All statements are my own opinion, expressed by a relatively novice investor. Do your own due diligence & verify posted information.