Today, many potteries, the flagship product of karamono (things imported from China) that time have been excavated from the remains of Heiankyo, and many think that although the number of the Japanese envoys to Tang Dynasty China declined, and even after the transfer of national capital to the city of Heiankyo, many potteries were brought from China into Japan and many of those were brought by private merchants.
更に今日かつての平安京からは当時の唐物の代表的商品である中国製陶器が多数発掘されており、遣唐使の減少にも関わらず平安遷都以後においても中国から大量の陶器が流入しており、それらの多くは民間の商人の手によってもたらされていたと考えられている。