Port City Paper Port City Paper has been serving the lowcountry for over 45 years. We are the largest locally owned paper and janitorial supply company in the Charleston market. Our sales staff has over 100 years of experience in the jan/san business and they are ready to serve you. PCP has been built on providing the best service with competitive pricing on all the items we sell. We deliver on daily bases through out the tri-county area. Buy from us and your money stays right here in the greater Charleston market. Our new warehouse and office complex with an extra large showroom are conveniently located in North Charleston just five minutes from I-26.