By the turn of the 20th century, Siber & Brennwald was a leading player in the silk export industry. In Singapore, garment trading was the soul of Diethelm & Co. Ltd, and in the Philippines, Ed. A. Keller & Co. focused on importing consumer goods. Their business achievements saw the entrepreneurs assume diplomatic responsibilities to help build Switzerland’s commercial interests. Caspar Brennwald became the first Swiss representative in Japan and Eduard Anton Keller was appointed Consul in Manila.