Ppk stands for Process Performance Index and is used for long-term variability. Overview: What Is Ppk? Ppk is a performance ...

RIEGELWOOD, N.C. (WECT) - A modified air quality permit has been issued to a local pulp and paper mill by the North Carolina Department of Environmental Quality’s Division of Air Quality (DAQ).

Manufacture and sale of BNNT and as an incubator for BNNT application companies and other innovative university or externally sourced science and technologies.