Mong Cai clams are a type of shellfish found in the coastal waters of Mong Cai, a city in Quang Ninh Province, Vietnam. Known for their sweet and tender meat, these clams are a popular delicacy in Vietnamese cuisine. They thrive in sandy and muddy seabeds, making them easy to harvest. These clams are often enjoyed grilled, steamed, or in soups, and are rich in protein and essential nutrients. The harvesting of Mong Cai clams supports local fishermen and contributes to the region's economy, making them an important seafood resource in Vietnam.