On the shores of Shi Dao Bay, at the easternmost tip of the Shandong Peninsula, a company focused on seafood processing is showcasing the transformation of traditional fishing into a modern ocean economy through full-industry-chain layout and technological innovation. Shandong Lanrun Group Co., Ltd., since its 2016 establishment through integration, has fully leveraged its coastal advantages to build an industrial cluster covering seafood processing, marine functional product R&D, aquatic product freezing, storage, processing, and sales, becoming a representative enterprise in Shandong's seafood industry.

Industrial Layout: Deep Cultivation of the Entire Chain from the Deep Sea to the Table

Shandong Lanrun Group's core business started with tuna processing and gradually expanded to diversified fields such as seaweed and pre-made dishes. Its ultra-low-temperature cold chain processing base is equipped with -60℃ ultra-low-temperature cold storage and intelligent production lines, with a daily tuna fillet processing capacity of 30 tons, and a daily canned tuna production capacity of 50-60 tons. Through refined processing such as skinning, deboning, and slicing, efficient resource conversion has been achieved.

On the shores of Shi Dao Bay, at the easternmost tip of the Shandong Peninsula, a company focused on seafood processing is showcasing the transformation of traditional fishing into a modern ocean economy through full-industry-chain layout and technological innovation. Shandong Lanrun Group Co., Ltd., since its 2016 establishment through integration, has fully leveraged its coastal advantages to build an industrial cluster covering seafood processing, marine functional product R&D, aquatic product freezing, storage, processing, and sales, becoming a representative enterprise in Shandong's seafood industry.

Industrial Layout: Deep Cultivation of the Entire Chain from the Deep Sea to the Table

Shandong Lanrun Group's core business started with tuna processing and gradually expanded to diversified fields such as seaweed and pre-made dishes. Its ultra-low-temperature cold chain processing base is equipped with -60℃ ultra-low-temperature cold storage and intelligent production lines, with a daily tuna fillet processing capacity of 30 tons, and a daily canned tuna production capacity of 50-60 tons. Through refined processing such as skinning, deboning, and slicing, efficient resource conversion has been achieved.

Technological Innovation: Industry Upgrade Driven by Industry-Academia-Research Collaboration

As a hidden champion enterprise in Shandong Province, Shandong Lanrun Group regards technological innovation as its core competitiveness. Its invested enterprise, Lanrun Biotechnology, has been recognized as a high-tech enterprise in Shandong Province and a Shandong Province " Specialized, refined, and new ” small and medium-sized enterprise, continuously striving to improve its technological R&D level.

Relying on quality control technology, online monitoring and automatic control of the production process, controllable molecular weight distribution and amino acid sequence have been achieved. High-activity collagen peptides with a molecular weight of less than 1000 Dalton have been successfully extracted from tuna bones, which can be directly absorbed by the human body, thus forming a series of collagen peptide products. This technology and related products have been successfully granted multiple patents; in addition, the company and its invested enterprises have cooperated with other research institutions to successively obtain research platforms such as the Shandong Tuna Industry Engineering Technology Collaborative Innovation Center, Weihai Tuna Resource Efficient Utilization Key Laboratory, and Weihai Technology Innovation Center.

Social Responsibility: Industrial Empowerment and Ecological Protection in Parallel

Shandong Lanrun Group has always integrated social responsibility into its corporate strategy. In the field of rural revitalization, the deputy secretary of the Party committee of Renhe Town, Rongcheng City, stated that the company has driven regional employment —— Local fishermen engage in seaweed cultivation and harvesting at their doorstep, while female workers are responsible for sorting seaweed raw materials and drying and packaging kelp, significantly increasing per capita income. This model also provides strong support for Renhe Town to accelerate the construction of marine ranches and blue granaries, promote the growth of the marine industry, and promote high-quality integrated development of the primary, secondary, and tertiary industries.

In terms of ecological protection, Shandong Lanrun Group promotes the concept of green production. Seaweed cultivation adopts " Porphyra - Pyropia - Ulva ” rotational cultivation mode to reduce the nutrient load in the sea area; " algae - shellfish - fish ” three-dimensional ecological aquaculture model forms a symbiotic system between seaweed, shellfish, and fish: seaweed releases oxygen through photosynthesis, shellfish filter feed on plankton to purify water quality, and artificial reefs absorb settling organic matter, forming a closed ecological chain. According to calculations by the Chinese Academy of Fishery Sciences, this model increases the carbon sequestration capacity of the sea area 40% , and reduces the nitrogen and phosphorus content in the water 60% , effectively reducing the incidence of red tides, truly achieving " storing grain in the sea, fixing carbon in algae ”。

Industry Leadership: From Regional Representative to International Recognition

With its technological strength and market performance, Shandong Lanrun Group's tuna products have a market share among the top in Shandong Province. In 2025 year, the company won the " Salute to the Food Industry 70 year brand —— Growth-type enterprise ” honor. In addition, the company has successively obtained ISO22000 food safety management system, HACCP certification, Kosher certification, Halal certification, British Retail Consortium certification ( BRC certification), dolphin-safe certification, and other professional certifications from various countries and regions. Its products are sold to major and medium-sized cities in China, as well as to the EU, Japan, South Korea, the United States, Russia, Southeast Asia, and other countries and regions. Today, Shandong Lanrun Group is using its own practices as a blueprint to continuously export technology, standards, and models to the industry, driving China's seafood industry from " scale advantage ” to " quality advantage " brand advantage ” leap, helping to write the ocean economy's " China solution ”。

From the in-depth development of a single tuna to the value reconstruction of a single piece of seaweed, Shandong Lanrun Group, with technological innovation as its engine and full-industry-chain layout as its support, has forged a distinctive development path in the transformation of traditional fishing into a modern ocean economy. In the future, this ocean-rooted enterprise will continue to uphold the concept of "striving for strength through the sea," writing more Chinese stories of the ocean economy in its journey of ensuring food safety, promoting green development, and assisting in rural revitalization. (Sun Yan)

From China Food World