Mid-Yuán calligrapher and theorist; zì Zǐjīng 子經, a man of Luóyuán 羅源 in Fújiàn. Active in the Tàidìng 泰定 era (1324–1328), serving as Jiàoyú 教諭 of Nán’ānxiàn 南安縣. Literary friend of 陳旅 (Chén Lǚ). Skilled at large characters (dàzì) and bāfēn 八分 clerical script, as noted in Táo Zōngyí’s KR3h0043 Shūshǐ huìyào. Author of KR3h0038 Yǎnjí 衍極 in five piān with three further piān of Yǎnjí jìzǎi 衍極記載; presented to the throne by Xuānfǔshǐ Qí Bóhēng 齊伯亨, who built a Yǎnjí táng 衍極堂 to store the book. The work was annotated by his contemporary 劉有定 (Liú Yǒudìng) of Pútián.