Oil and gas stocks continue to strengthen, driving a broad rebound in the chemical sector. XINGHUA CHEMISTRY has hit the daily limit up, achieving 3 boards in 7 days. LIU GUO CHEMICAL, ZHONG YI DA, DAN HUA TECHNOLOGY, and BHCC have also reached the daily limit up, while JINNIU CHEMICAL, Redwall, Chitianhua, and YMCC have seen significant gains
