We are pleased to announce the opening of our Osaka branch office as detailed below. We kindly ask for your continued guidance and support. Location: 1-4-4 Dojimahama, Kita-ku, Osaka City, Osaka Prefecture, 530-0004 Aqua Dojima Fontana 3F Room 10 Phone number: Please contact our Tokyo headquarters at (03-3832-1617) Scheduled start date: Tuesday, October 1, 2019

Chichibu Chemical will be exhibiting at the "Sewage Exhibition '19 Yokohama" held at Pacifico Yokohama from Tuesday, August 6. 【Exhibition Zone / Booth Number】 ■ Pipeline Materials / B410 【Exhibition Content】 ■ Display of Plastic Rainwater Runoff Control Facilities Chichibu Chemical's plastic rainwater runoff control facilities create underground storage space for rainwater to suppress runoff and mitigate flooding and inundation damage. Depending on the installation conditions, we use both infiltration and storage types; the infiltration type contributes to groundwater recharge and maintaining low water flow in rivers, while the storage type can also be utilized as rainwater utilization tanks. With components that balance lightweight and high strength, these facilities can be installed under parking lots with strength that meets Level 2 seismic motion (equivalent to the Great Hanshin-Awaji Earthquake) and live load T-25, while keeping total costs, including installation, low. *We sincerely look forward to your visit.

Starting from April 1, 2019, the application range of Chichibu Chemical products will be changed in accordance with the new technology guidelines for technical evaluation and certification by the Public Interest Incorporated Association for Rainwater Storage and Infiltration Technology. For more details, please check our official website.

We have released a new standard model "New Trench-kun II," which has been redesigned in accordance with the new technical guidelines of the Public Interest Incorporated Association for Rainwater Retention and Infiltration Technology (the product dimensions remain unchanged). "New Trench-kun II" has the following improvements compared to the conventional model: - Compliance with the new technical guidelines of the Public Interest Incorporated Association for Rainwater Retention and Infiltration Technology - Improved connection pieces for easier assembly - Elimination of transfer pipe ribs, allowing for internal inspection of the tank using an inspection camera.

Chichibu Chemical's "New Pura-kun" was featured in the "Trend Tamago" segment of TV Tokyo's "World Business Satellite" broadcast on May 28 (Monday).

We will be exhibiting at the Rainwater Storage and Infiltration Technology Association (ARSIT) pavilion at the "InterAqua 2018 9th International Water Solutions Comprehensive Exhibition" held at Tokyo Big Sight from February 14 (Wednesday) to 16 (Friday), 2018. We understand that you are busy, but we sincerely hope you will take this opportunity to visit us and stop by our booth.

On August 24 (Thursday) and 25 (Friday), 2017, we will participate in the "13th Term 12th Technical Conference and Exhibition of Technical Presentations" held at the Saitama Shintoshin Government Building No. 1, 2nd Floor Auditorium. We plan to give a presentation about New Trench-kun starting at 16:20 on August 24 (Thursday). We would be grateful for your enthusiastic participation. Saitama Shintoshin Government Building No. 1, 2nd Floor Auditorium 1-1 Shintoshin, Chuo Ward, Saitama City, Saitama Prefecture

In the fiscal year 2017, our proposed project "Feasibility Study on Plastic Rainwater Storage Structures" targeting Thailand was selected for the "Support Project for Overseas Expansion of Small and Medium Enterprises - Feasibility Study" by the Japan International Cooperation Agency (JICA). The contract was signed on August 18, 2017. In Thailand, which experiences heavy rainfall, flooding damage occurs frequently, and the lack of sewerage and drainage facilities is a significant issue. The impact of the 2011 Thailand floods on the Japanese supply chain is still fresh in our memories. This study will investigate the actual conditions of flooding damage, rainwater utilization, and ground conditions, primarily in Bangkok, and will examine the feasibility of deploying plastic rainwater storage structures.

We will be exhibiting our booth at the ARSIT Pavilion during 'InterAqua 2017', which will be held at Tokyo Big Sight from February 15 (Wednesday) to February 17 (Friday), 2017. Additionally, we will be giving a presentation focused on the New Trench Method at the ARSIT Seminar, which will take place on the 15th (Wednesday) at 15:15 in the InterAqua seminar venue (inside Hall 1). We would be grateful for your enthusiastic participation.

In the May 2016 issue of the Japan Chamber of Commerce and Industry's business monthly magazine "Ishigaki," our JICA Indonesia dissemination and demonstration project was featured in the article "Support for Overseas Expansion of Small and Medium Enterprises Utilizing ODA."

On October 26 (Wednesday) and 27 (Thursday), 2016, we will participate in the "13th Term 6th Technical Lecture and Exhibition of Technical Presentations" held at the Construction Technology Exhibition Hall of the Kanto Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism. On October 26 (Wednesday) at 15:25, we plan to give a lecture on "Technology for constructing underground spaces using plastic materials to store and infiltrate rainwater." We would be grateful for your enthusiastic participation. Construction Technology Exhibition Hall Secretariat (within the Kanto Technical Office of the Ministry of Land, Infrastructure, Transport and Tourism) 〒270-2218 6-12-1 Goko Nishi, Matsudo City, Chiba Prefecture TEL: 047-394-6471 FAX: 047-394-6477

I have recently joined the General Incorporated Association of Architectural Equipment Comprehensive Association.

We sincerely apologize for the inconvenience, but our company will be closed for summer vacation from August 11 (Thursday) to August 16 (Tuesday). We appreciate your understanding during this period. Normal operations will resume on August 17 (Wednesday). Inquiries received during the closure will be addressed sequentially starting from August 17 (Wednesday), so we kindly ask for your understanding.

Photos from the 2013 fiscal year supplementary budget dissemination and demonstration project "Dissemination and Demonstration Project for Plastic Rainwater Storage and Infiltration Facilities," which has been promoted since January 9, 2015, by the Independent Administrative Institution Japan International Cooperation Agency (JICA), have been displayed at the reception of the JICA Indonesia office.

The General Incorporated Association of Architectural Equipment Comprehensive Association hosts the "Environmental and Equipment Design Award," which recognizes and awards outstanding "Environmental and Equipment Design" to ensure accurate and objective evaluations of environmental and equipment design are widely published and recognized in society. Our company, New Trench-kun, won an award in the "Section 1: Equipment Fixtures and System Design Category," which targets designs that excel in aesthetics and functionality for versatile equipment fixtures, equipment devices, and equipment systems, during the "14th Environmental and Equipment Design Award Second Screening" held on April 15, 2016.

From January 27 (Wednesday) to 29 (Friday), 2016, we exhibited our booth at the ARSIT Pavilion of "InterAqua 2016" (Tokyo Big Sight). During this period, many people visited us. We sincerely thank everyone who came to our booth.

We will be exhibiting our booth at the Rainwater Storage and Infiltration Technology Association (ARSIT) pavilion at the "InterAqua 2016 7th International Water Solutions Comprehensive Exhibition," which will be held at Tokyo Big Sight from January 27 (Wednesday) to January 29 (Friday), 2016. We understand you are busy, but we sincerely hope you will take this opportunity to visit us at our booth. 【InterAqua 2016 Homepage: http://www.interaqua.jp/index.html】

The Kanto Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism has established the "Construction Technology Exhibition Hall" to introduce new technologies used in public works to field engineers and the general public. As part of the renewal for the 13th term (from FY 2015 to FY 2017), a selection of exhibited technologies has been made, and our New Trench-kun will be permanently displayed. The exhibition will run for approximately two years, from October 27, 2015, to September 30, 2017, so please visit us when you are nearby. Construction Technology Exhibition Hall Office (within the Kanto Technical Office of the Ministry of Land, Infrastructure, Transport and Tourism) 〒270-2218 6-12-1 Goko Nishi, Matsudo City, Chiba Prefecture TEL: 047-394-6471 FAX: 047-394-6477 ■Opening Days Tuesday to Friday (excluding public holidays and year-end/New Year holidays) *For group visits outside of opening days and hours, please inquire. ■Opening Hours From 10:00 AM to 4:00 PM ■Admission Fee Free admission

The plastic rainwater storage tank "Pladam-kun," with its excellent pressure resistance due to the four-chamber integrated structure, can be installed under parking lots. With over 90% void space, it exhibits a significant storage effect, and maintenance is easy thanks to the use of inflow chambers. It is suitable for both small and large-scale applications. We have made some revisions to the catalog. We are introducing the latest installation example photos, so please take a look.

We will be exhibiting our booth at the ARSIT Pavilion during 'InterAqua 2015', which will be held at Tokyo Big Sight from January 28 (Wednesday) to January 30 (Friday), 2015. Additionally, we will be giving a presentation focused on the New Trench Method at the ARSIT Seminar, which will take place on January 30 (Friday) at 16:00 in Seminar Room B in Hall 1 East. We would be grateful for your enthusiastic participation. [InterAqua 2015 Homepage: http://www.interaqua.jp/index.html]

We sincerely apologize for the inconvenience, but our company will be closed for the year-end and New Year holidays from December 27 (Saturday) to January 4 (Sunday). We appreciate your understanding during this period. Normal operations will resume on January 5 (Monday). Inquiries received during the holiday period will be addressed sequentially starting January 5 (Monday), so we kindly ask for your understanding.

As a sponsoring company, we participated in the "7th Rainwater Network Conference National Convention 2014 in Fukui" on Saturday, August 23, 2014. At our exhibition booth, we introduced our products: [Plus Pool], [Pladam-kun], and [New Trench-kun].

We are pleased to inform you that New Trench-kun has been registered in the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system 'NETIS'. For more details, please check the Ministry of Land, Infrastructure, Transport and Tourism's website (NETIS No. KT-130092-A).

Chichibu Chemical has obtained "Technical Evaluation Certification" from the Public Interest Incorporated Association for Rainwater Storage and Infiltration Technology for the New Trench Method and the Pradam Method. We would like to inform you that the certification for the Pradam Method has been renewed as of April 1, 2014.

We have partially revised the catalog for the plastic permeable trench "New Trench-kun," which significantly reduces construction area with outstanding water treatment capabilities, shortens construction time without the need for piping work, and lowers total costs with maintenance features. The main changes are as follows: - The structural diagrams have been organized for better clarity. - We have included details of various strength tests. - The descriptions in the table regarding soil cover and other aspects have been made more detailed. Please take a look at the revised catalog for "New Trench-kun." If you have any questions about the product, feel free to contact our sales department.

We have developed an underground plastic rainwater storage tank called "Plas Pool," which has been on sale since 2012. Being underground, it does not take up space and can be installed in various locations such as residential gardens and small-scale community disaster prevention centers. It also ensures seismic resistance level 2 (equivalent to the Great Hanshin-Awaji Earthquake), allowing for safe use during emergencies. With a large capacity that can support a family of four for one month (calculated based on 40 liters per person per day), it can be used for watering plants and other daily activities to easily conserve water, while also securing valuable domestic water in emergencies. For more details, please feel free to contact our sales department. *In May 2012, we exhibited at the "2012 New Environmental Exhibition" (Tokyo Big Sight). We sincerely thank everyone who visited us during the event.

The plastic rainwater storage tank "Pladam-kun" can be installed under parking lots due to its excellent pressure resistance strength from its four-chamber integrated structure. With over 90% void space, it exhibits a significant storage effect, and maintenance is easy thanks to the use of inflow chambers. It is suitable for both small and large-scale applications. In December 2011, we published an updated catalog with significantly increased page numbers. The main additions are as follows: ● Added photos of installation conditions and examples ● Added layout and structural diagrams ● Added photos of various components with more detailed information on dimensions and materials ● Added photos of ancillary facilities such as inflow and inspection facilities Please take a look at the latest catalog for the "Plastic Dam 'Rainwater Storage Tank' Pladam-kun."

We have published an application page for the "Plastic Rainwater Retention and Infiltration Facility 'New Trench-kun' Comprehensive Catalog - Free Gift for Design Engineers" on our product page. "The plastic rainwater retention and infiltration facility 'New Trench-kun' significantly reduces construction area and duration with its high void ratio and workability, includes maintenance features, and can be installed under parking lots. We will provide a comprehensive catalog that includes performance data, construction example photos, installation conditions, structural diagrams, and all necessary information for design engineers, free of charge." You can view the table of contents for the comprehensive catalog on the product page below. Please feel free to apply.