Shandong Yipintang Industrial Co., Ltd. was established in 20 10, and is a wholly foreign-owned enterprise. In recent years, the company's product line has also been enriched from the original single Laiyang pear juice to several categories and more than ten kinds of products with high-end product "one pen" stewed pear soup as the main product. Its main product, the stewed pear soup with Laiyang pear juice, is the only "Jian" health food approved by the Ministry of Health, which has the health function of clearing throat and moistening throat. The company has passed ISO9002 international quality system certification, product certification and HACCP certification. "One-stroke Laiyang pear juice" retains the original juice and flavor of Laiyang pear.

Through vigorous advertising in CCTV prime time and major media in China, the company hired Fan Bingbing, a famous movie star, as the image spokesperson of the product, which made the brand of "One Pen" rapidly improve in the country, and established a marketing network covering all parts of the country, and the products of "One Pen" sold well all over the country. It has rapidly developed into a well-known domestic beverage brand.