Birth of 'Solid Fuel REBON'

Sanix Resource Development Group Co., Ltd. (Headquarters: Toranomon Kotohira Tower 19F, 1-2-8 Toranomon, Minato-ku, Tokyo, President & CEO: Hideki Takei) is developing 'Solid Fuel REBON', a new product made from organic sludge.

Solid Fuel REBON

According to data released by the Ministry of the Environment on March 27, 2026, titled "Status of Industrial Waste Generation and Treatment (FY2023 Results)", sludge is the most common industrial waste, with a generation volume of 158.54 million tons and a share of 42.1%.

Amidst this, approximately 76,175 tons of sludge (FY2024) are discharged annually from restaurants and food factories in the Tokai region and westward, and transported to Sanix Resource Development Group's Hibiki Plant. Approximately 11,283 tons (FY2024) of organic dewatered sludge are generated from this sludge treatment process. 'Solid Fuel REBON' is produced using a portion of this organic dewatered sludge as a raw material, with an anticipated annual production of 900 tons.

Prior to 'Solid Fuel REBON', Sanix Resource Development Group commercialized and sold 'Bio-oil Bio®', an alternative to heavy oil made from grease trap sludge, in 2018. Currently, they are further refining 'Bio-oil Bio®' and have begun developing raw materials for SAF (Sustainable Aviation Fuel). Both of these products contribute to carbon neutrality.

Sanix Resource Development Group aims to support companies' efforts towards a decarbonized society and realize a circular economy through its business of recycling industrial waste into renewable fuels.

Coal

Solid Fuel REBON (Pellet form)

Origin

Fossilized plants from ancient times

Grease trap sludge discharged from restaurants, etc.

Gross calorific value: kJ/kg (kcal/kg)

Around 28,000 (6,700)

21,000 (5,000) or more*

Ash content: mass%

10-15

25 or less*

Sulfur content: mass%

0.3-1.0

0.4 or less*

Chlorine content: mass%

0.1 or less

0.2 or less*

CO₂ emissions per ton of combustion (t)

Approx. 2.4

Approx. 1.7

*Displayed on a dry sample basis

※Coal data referenced from the Ministry of Economy, Trade and Industry (Agency for Natural Resources and Energy)

Company Profile

Sanix Resource Development Group Co., Ltd.

Homepage: https://s.sanix.jp/

Established in May 2024 as a subsidiary of Sanix Holdings Co., Ltd. Engages in waste treatment and recycling (mainly fuel conversion of waste plastics, purification of waste liquids, and production of recycled fuels derived from waste liquids), sales of integrated waste management systems, and retail electricity sales.

Sanix Holdings Co., Ltd.

[Listed on Tokyo Stock Exchange, Securities Code 4651] Homepage: https://hd.sanix.jp/

Founded in 1975. With the corporate philosophy of "A comfortable environment for the next generation," the company is engaged in businesses related to environment and energy. Through a wide range of businesses, from hygiene management and facility maintenance for detached houses and multi-unit dwellings, to procurement, sales, and construction of solar power generation, fuel conversion of industrial waste and power generation business using said fuel, and retail electricity sales, we contribute to the realization of a decarbonized society and a resource-recycling society. We also focus on fostering healthy youth and international exchange through sports.