PDM, Inc.
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PDM was founded in 1974 by Walter (Bud) Cleaver, Sr., a pioneer in opening the way for China to sell its gum rosin in the U.S. He visited China dozens of times for the Hercules Company. Upon his retirement from Hercules in 1974, he continued his efforts by marketing Chinese, Portuguese and Brazilian gum rosin as President of Pine Derivatives Marketing, Inc.

Walt Cleaver, Jr., our company's President, has continued his father's tradition, by offering gum rosin, modified resins, and other pine chemicals from all over the world throughout the U.S. and Canada.*

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*To all our global friends, please note that we do not export outside of North America.