20 18. The developer of Siyuan Notes is Yunnan Liandi Technology Co., Ltd., which was last updated on September 13, 2022, and Siyuan Notes appeared on October/8. Yunnan Liandi Technology Co., Ltd. was established in 20 18, located in Kunming, Yunnan Province. It is an enterprise mainly engaged in technology promotion and application services, with registered capital of 1 10,000 yuan and paid-in capital of 1.23 million yuan.