1933	Shunkichi Nomura and Isamu Iwamoto established Nomura Jimusho in the Marunouchi Building as a limited partnership and began importing crude oil, heavy oil, aviation fuel, and lube base oil from a few companies, including The Texas Company (Texaco)
1950	Began import/sales of lube oil additives (OLOA) from Oronite Chemical Co. Concluded agent agreement with Texaco Development Corp. for licensing technology
1951	Began purchasing commodities made in Japan and exporting them to California Texas Oil Co. (CALTEX)
1952	Relocated the head office to the Eiraku Building (Marunouchi)
1954	Began import/sales of Thiokol LP (liquid polysulfide) as an agent of Thiokol Chemical Corp.
1957	Began import/sales of FCC (fluid catalytic cracking) catalysts as an agent of Nalco Chemical Co. Relocated the head office to the Nisseki Building (Yurakucho)
1961	Established a joint venture, Karonite Chemicals Co., Ltd.(now Chevron Japan Ltd.), for the local production of Oronite lube oil additives
1962	Relocated the head office to the Nisseki Main Building (Nishi Shimbashi)
1964	Nomura Jimusho was incorporated as a joint-stock company
1967	Established a joint venture, Toyo Ethyl Co., Ltd., for the local production of tetraethyl lead Established a joint venture, Mitsui-Texaco Chemicals Co., Ltd., for the local production of normal paraffin As a business advisor for Chevron Research & Technology Co., began licensing hydroprocessing technologies developed by Chevron and also began sales of their hydroprocessing catalysts
1969	Established a joint venture, Toray Thiokol Co., for the local production of Thiokol LP
1970	Concluded agent agreement with Stratford Engineering Corp. and began licensing their alkylation process
1971	Concluded representation agreement with AFA Corp. and began sales of trigger sprayers
1974	Consolidated and relocated the head office to the Hibiya International Building (Uchisaiwaicho)
1977	Began sales of antimicrobial agents for industrial use manufactured by Thiokol Ventron Div. Established a joint venture, Yoshino Thiokol Co., (now Yoshino Trigger Co., Ltd.), for the local production of trigger sprayers Relocated the head office to the Bussan Building Annex (Nishi Shimbashi)
1979	Concluded distributorship agreement with Technical Sales & Engineering Co. (TSE) and began sales of millable polyurethane rubber
1981	Concluded agent agreement with Engelhard Minerals & Chemicals Corp. for FCC catalysts
1993	Concluded representation agreement with Powertex, Inc., and began sales of Sea Bulk/Powerliner
1994	Performance chemical business taken over from Morton International, Ltd. (Japan) Established a joint venture, Yoshino Moong Pattana (Thailand) Co., Ltd., for the production and assembly of molded plastic components in Thailand
1995	Concluded distributor agreement with Morton Salt Division of Morton International, Inc., and began import/sales of table and industrial salts
2000	Concluded distributor agreement with Rohm and Haas Co. for performance chemicals, plastic additives, and specialty plasticizers Concluded manufacturer’s representative agreement with Hiltap Fittings Ltd., and began import/sales of quick couplings Concluded distributorship agreement with bioBubble, Inc. and began import/sales of bio-clean rooms
2001	Concluded agent agreement with Chevron Lummus Global, LLC (CLG), for licensing technology and with Advanced Refining Technologies, LLC (ART), for the sale of hydroprocessing catalysts
2002	Concluded commercial agent agreement with Grace Davison – W.R. Grace (Singapore) Pte., Ltd., for the sale of FCC catalysts and additives
2003	Began sales of lab-animal bedding manufactured by Tapvei Oy (Finland)
2005	Concluded distributorship agreement with TAH Industries, Inc., and began sales of their Universal Cartridges Acquired ISO14001 certification
2009	Concluded distributorship agreement with Vertellus Specialties Inc., and began sales of pyridines, pyridine derivatives, and various specialty chemicals Rohm and Haas Co. was acquired by Dow Chemical Co., but Nomura continues to serve as their distributor
2011	Establised a subsidiary, Junju Global Trading (Shanghai) Co., Ltd., in Shanghai, China Relocated the head office to the Hibiya Central Building (current location)
2013	Established a joint Venture, M-CLEA Bioresource Co., Ltd., for breeding experimental animals in Thailand. Established a joint Venture, Nomura Siam International Co., Ltd., for sales of experimental animals and related equipment in Thailand.
2014	Established a subsidiary, Nomura Jimusho Vietnam Co., Ltd in Hanoi, Vietnam.
2015	Inherited existing businesses following Vertellus Specialties Inc.'s (now Aurorium) acquisition of Dow Chemical Co.'s SBH business Became an agent for Daily Thermetrics Corporation and began the handling of various thermometers for plants
2016	Started selling plant-derived base oil materials from Novvi, LLC.
2017	Became an agent for MECS Inc. and began the handling of sulfuric-acid production processes, equipment, and catalysts Concluded distributorship agreement with Arrayjet Limited, and began sales of microarrayers
2018	The SBH business of Vertellus Specialties Inc. (now Aurorium) became independent, and the company name changed to Ascensus Specialties LLC, inheriting the existing businesses
2020	Started selling 100% plant-derived base oils and solvents from Novvi, LLC. Concluded Product Supply Agreement with Novvi, LLC.
2022	Concluded strategic Distributorship Agreement with ProfilePrint Pte. Ltd., initiating sales of innovative AI solutions to the food ingredient industry
2023	Established a New Business Development Division
2024	Established a Bangkok office (for biomass business development) Concluded comprehensive Channel Partnership Agreement with ProfilePrint Pte. Ltd., further building on our successful collaboration and solidifying our relationship