Congratulatory Letter Warm congratulations to Wandong Chemical Co., Ltd. on obtaining the invention of a preparation method for an adsorption resin with an ultra-large specific surface area. Jianghuai Industrial Group (Tianchang) Co., Ltd. Warm congratulations to Wandong Chemical Co., Ltd. on obtaining the invention of a preparation method for an adsorption resin with an ultra-large specific surface area. Anhui Shengdong Chemical Co., Ltd. Warm congratulations to Wandong Chemical Co., Ltd. on obtaining the invention of a preparation method for an adsorption resin with an ultra-large specific surface area. Tianchang Jianghuai Machinery Co., Ltd.