Calmsperity / CASA 靜 ‧ 興 is a new furniture brand established in 2016 by Holyring furniture Co., Ltd., the brother company of Powder Dekor and Dare Global Wood under Dare Science & Technology Group Co., Ltd.

It is a chain wide store in China domestic. Frank Yeh created this new global dwelling concept to China and was leading the teams of the branding development, product design, store space design, and graphic design for propagandas.