PNC International Inc. focuses on the research, development, and marketing of professional audio equipment and environmental purification products. Its products include mixers, amplifiers, speakers, and whole-house air purification systems. The company operates in Taiwan, Iran, the United States, Hong Kong, China, and internationally. It was formerly known as Phonic Corporation and changed its name to PNC International Inc. in March 1988. Incorporated in 1973, the company is based in Taipei, Taiwan.