Archaeologists have discovered an ancient Roman pottery factory in Sermaize, Oise, during the development of the Seine-North Europe Canal. The site, uncovered by Inrap, covers an area of 20,000 square meters and dates from the first century BCE to the third century CE. This workshop operated for nearly three centuries with only brief interruptions, and the kilns found there show a clear evolution in design over time, progressing from single-flue models to more advanced central-wall models. The location of the site is significant, as it lies along what is believed to be the road of Agrippa, a major Roman road connecting Noyon to Amiens. A secondary road, about 5 meters wide, was also identified nearby. The potters who worked here sourced their clay from an extraction area spanning approximately 2,500 square meters. Surrounding the site, archaeologists found 10 cellars and 13 flint tools, suggesting a broader settlement or activity area. Inside the workshop, 14 groups of potters' wheels were uncovered, with each group containing between 2 and 6 wheels. This suggests that the site was involved in large-scale pottery production. The excavation also revealed evidence of discarded pottery, including deformed or cracked vessels, which provide insight into the production process and quality control methods used by the potters. Among the items produced at the site were gilded cups decorated with mica, which were likely used on Roman tables. The completeness of the site, from clay extraction to the final sale of pottery, is considered exceptional by Inrap. Few ancient sites document such a full production chain on the same plot, making this discovery particularly valuable for understanding Roman industrial practices. The excavation is part of the broader project managed by the Seine-Nord Europe Canal Society, which is overseeing the development of the new waterway.