TDH Holdings Inc. Common Shares. Replay the stock market charts of PETZ day by day back to 2003. Open long and short positions without spending any money. TDH Holdings Inc is engaged in the business of manufacturing and selling of pet food. Its products include dog food made of meat, pet food, pet biscuits, dental dog food, dog chews, pet food made of fish, vegetarian pet food, canned pet food and cat food.