Core Insights - The article highlights the significant performance of Chang'an Huaxi Mansion Jin'an in the residential property market of Mentougou District, achieving the highest contract signing amount in January 2026 at 670 million yuan [1][3]. Group 1: Company Performance - Chang'an Huaxi Mansion Jin'an secured a contract signing amount of 670 million yuan in January 2026, ranking first in the Mentougou District for residential projects [1][3]. - The project recorded 157 signed units with an average price of 4.44 million yuan per unit [3]. Group 2: Market Context - The second-ranked project, Jingtou Development Tanggu, had a contract signing amount of 2.8 million yuan, significantly lower than Chang'an Huaxi Mansion Jin'an [3]. - Other projects in the top ten list include Longhu Beichen Lan Jing and Yajule Fuchun Mountain Residence, with contract signing amounts of 500,000 yuan and 200,000 yuan respectively, indicating a substantial gap in performance compared to the leading project [3].