## 1 Introduction  
With the increase in global trade, cross-border e-commerce, and location-based services, the use of verified and accurate addresses has played an important role in business efficiency. The use of high-quality address data saves time and money required for organizational work, increases customer satisfaction, and improves business processes by supporting the accurate delivery of products or services to customers [1,2]. However, each country may have a different address system and the purpose of using an address is different depending on the business; therefore, address data quality verification and improvement are challenging. The importance of address data quality can vary depending on the field in which the address is used. For example, the accurate delivery of goods is important in the e-commerce system, but in the field of food safety, it is more important to find the correct administrative district from the address or to quickly select optimal area requiring import bans and containment policies in the case of food risk. [PERSON] et al. [3] explained the advantages of address standardization in three ways. The first economic advantage is that it facilitates the exchange of address data by enabling the interoperability of address data. The second social advantage is that some countries have different address systems for each local government; therefore, a standardized address system greatly reduces social confusion. The third advantage of national governance is that addresses play an important role in the performance of public administration tasks, such as elections and censuses. ISO/TC211, an international standardization organization, established international standards for ISO 19160-1: Conceptual Model ] in 2015, ISO 19160-4: Postal Address ] in 2017, and ISO 19160-3: Address Data Quality ] in 2020 [4]. Internationaladdress standardization has been carried out by ISO TC 211 19160 (Geographic Information Division) Working Group 7 (WG7) since 2009 [4]. Conceptual model (ISO 19160-1), address assignment (ISO 19160-2), quality management (ISO 19160-3), international mail (ISO 19160-4), and map notation (ISO 19160-5) are being standardized [4]. In addition, in the era of digital transformation and IoT, it is expanding its scope through standardization of IoT addresses. [ISO 19160-3: Address Data Quality ] can be the standard for address data accuracy verification [4]. In this standard, address data quality is classified into completeness, logical consistency, positional accuracy, temporal quality, thematic accuracy, and usability element [4]. This study proposed an address verification technique that is useful for improving the quality of address data for foreign food manufacturers in the field of imported food safety. There are approximately 90,000 overseas food manufacturers exporting food to Korea from more than 190 countries [5] and it is necessary to verify the addresses of the manufacturers in each country for efficient business processing. In addition, in the event of a food hazard, it is necessary to promptly recognize the appropriate level of the administrative district from the address of the relevant establishment and take measures to ban or block imports to the relevant area. Because each country may have a different administrative division system, it may be difficult to recognize the corresponding administrative division from the address. For example, in some countries, the administrative division system has more than four levels, and in small countries, it is composed of less than two levels; therefore, each country must devise a different method. Therefore, a module for verifying addresses and identifying administrative division levels should be developed differently for each country (or group of similar countries) to increase accuracy. In this study, we verified the addresses of food manufacturers by integrating Google's geocoding service with a deep-learning-based model.