With its back to Mt. Myogi, nestled in an ideal environment with access to the bounty of the naturally mineral-laden water from the Usuigawa River, this silk milling factory remains in operation today, producing raw silk. Few silk milling factories can manufacture 100% domestically produced silk, but Usui Silk takes the challenge seriously and achieves excellent results. Today, there are many trainees from China eagerly studying the various techniques and passing them on.