A local chieftain told Hsu that at that time the only people who dared enter Kayan territory were the Chinese, who traded matches, salt, sugar, and other articles with the Penan.
當地酋長告訴徐仁修，在當時，唯一敢深入卡揚人領域，以火柴、鹽巴、糖等物品和卡揚人交易的就只有華人。