Group 1 - Shandong Agricultural University Fertilizer Technology Co., Ltd. (referred to as "Agricultural Technology") has completed the first round of inquiry letter responses, addressing 11 questions related to "business and technology," "reasonableness of performance changes," "reasonableness of large inventory," and "use of raised funds" [2] - Agricultural Technology's production capacity utilization rates for 2022 to 2024 are projected to be 65.14%, 68.72%, and 56.63%, respectively, indicating a year-on-year decline of 17.59% in 2024 [5] - The company plans to raise 552 million yuan through its IPO, which will be used for various projects, including a 300,000-ton annual production project for humic acid intelligent high tower compound fertilizer and a 150,000-ton annual production line for biological fertilizers [4] Group 2 - Agricultural Technology's main products include humic acid-enhanced fertilizers, controlled-release fertilizers, and water-soluble fertilizers, with its coated urea production and sales ranking first in the industry and humic acid compound fertilizers ranking second [4] - The inquiry letter highlights concerns regarding the reasonableness of Agricultural Technology's fundraising for capacity expansion, given its insufficient capacity utilization [2][5] - The overall fertilizer industry has experienced significant idle capacity, with average capacity utilization rates for listed companies in the sector being 47.07%, 52.78%, and 46.50% from 2022 to 2024 [5]