U.S. Consumer Product Safety Commission – Fast Track Recall Release Date: August 4, 2021 Release Number: 21-175 LG Energy Solution Michigan Recalls Home Energy Storage Batteries Due to Fire Hazard Recall Summary Name of Product: LG Chem "RESU10H" Lithium-Ion Residential Energy Storage System Batteries Hazard: The home batteries can overheat, posing a risk of fire and emission of harmful smoke. Remedy: Replace Consumers with recalled batteries should immediately contact LG Energy Solution Michigan to schedule a free replacement. LG Energy Solution Michigan will arrange for modifications to recalled batteries that are connected online to reduce the risk of overheating until they can be replaced with new batteries. LG Energy Solution Michigan, its distributors, and its installers also are attempting to contact owners directly. Consumer Contact: LG Energy Solution Michigan toll-free at 888-737-8104 from 9 a.m. to 5 p.m. ET Monday through Friday, email at RESUservice@lgensol.com, or online at www.lgessbattery.com/us or https://www.lgessbattery.com/us/main/main.lg and click on "Battery Recall: Free Replacement Campaign" for more information. Recall Details Units: About 10,000 (In addition, 2017-2019 RESU 10H were previously recalled for a fire hazard on December 16, 2020.) Description: This recall involves LG Chem Model RESU 10H lithium-ion storage batteries that were installed as part of a residential energy solar panel system. The recalled batteries allow owners to capture and store energy from the solar panels. The batteries are wall mounted and measure about 29 by 36 by 8 inches. They weigh roughly 220 pounds. The LG logo is located on the top left side of the front panel. The serial number of the recalled product begins with R15563P3 and is located behind the access door of the RESU home battery. Incidents/Injuries: The firm has received five reports of the lithium storage batteries smoking and catching on fire, resulting in property damage and one injury. Sold At: Various distributors of solar energy storage systems nationwide, including, but not limited to Sunrun, AEE Solar, Baywa, CED, Krannich, Independent Electric Supply, and Inter Island Solar Supply from January 2017 through April 2019 for about $8,000. Importer: LG Energy Solution Michigan, Inc., of Holland, Mich. (formerly LG Chem Michigan Inc.), a wholly-owned subsidiary of LG Energy Solution, Ltd. (in turn a wholly-owned subsidiary of LG Chem Ltd.). Manufactured in: Korea In order to determine whether your ESS Home Battery is within the scope of the free replacement program, please visit https://www.lgessbattery.com/us/home-battery/checkSN.lg and search for your product's Serial Number. Photos Recalled RESU 10H home battery The serial number label is located behind the access door of the recalled RESU 10H home battery. This recall was conducted voluntarily by the company under CPSC's Fast Track Recall process. Fast Track recalls are initiated by firms who commit to work with CPSC to quickly announce the recall and remedy to protect consumers. About the U.S. CPSC The U.S. Consumer Product Safety Commission (CPSC) is charged with protecting the public from unreasonable risks of injury or death associated with the use of thousands of types of consumer products. Deaths, injuries, and property damage from consumer product incidents cost the nation more than $1 trillion annually. CPSC's work to ensure the safety of consumer products has contributed to a decline in the rate of deaths and injuries associated with consumer products over the past 40 years. Federal law bars any person from selling products subject to a publicly announced voluntary recall by a manufacturer or a mandatory recall ordered by the Commission. For lifesaving information: - Visit CPSC.gov. - Sign up to receive our e-mail alerts. - Follow us on Facebook, Instagram @USCPSC and Twitter @USCPSC. - Report a dangerous product or a product-related injury on www.SaferProducts.gov. - Call CPSC's Hotline at 800-638-2772 (TTY 301-595-7054). - Contact a media specialist.

Frequently Asked Questions Regarding LG Energy Solution's Battery Recall and Replacement Program Q1: Why is LG Energy Solution replacing my battery? A: In cooperation with the global product safety authorities responsible for product recalls, LG Energy Solution (LG ES) recently announced a voluntary recall and free replacement program for certain residential energy storage system batteries. The recalled home batteries can overheat, posing a risk of fire and emission of harmful smoke. LG ES is undertaking this voluntary action as part of its commitment to product safety and to providing the highest quality and service to its customers. Q2: Should customers turn off the batteries? What should customers do until the batteries are replaced? A: No action is required by customers whose batteries are connected online, because LG ES has remotely deployed modifications to impacted batteries to reduce the risk of overheating. Customers whose batteries are offline should call LG ES or their distributor/installer for further instructions. Out of an abundance of caution, if a customer plans to leave home for an extended period of time, such as a vacation, LG ES recommends turning off the system to avoid leaving the home battery in a fully charged condition. Q3: Will LG ES replace affected units with new batteries? A: Yes, LG ES will replace the affected batteries with newly manufactured batteries that incorporate state-of-the-art safety features that were designed to prevent overheating that might lead to fires and/or emission of harmful smoke. Q4: Please explain the replacement process. A: The program will begin in October 2021. LG ES will contact the original installers for the batteries to arrange for that installer to perform the replacement service work. If for any reason the original installer is not able to perform the work, LG ES will make alternative arrangements. LG ES has already started contacting the owners of the batteries with instructions, but battery owners, installers and distributors who would like additional information should call LG ES' recall help line listed at the end of the FAQ. LG ES will work to arrange a replacement schedule that is convenient for you. However, please understand that despite the company's best efforts, there may be some delays, due to factors that are outside our control, such as the severe global shortage of semiconductors and other components of residential energy storage systems. As stated above, if you own an "offline" battery, please contact LG ES as soon as possible to provide the company with your specific location and battery information to start the process as soon as possible. Q5: Will LG ES extend the existing Warranty period for the product as part of its replacement program? A: Yes, all replaced remotely modified batteries will come with a new ten (10) year warranty period, starting from the date of installation. Call your distributor/installer for further details. 1. Phone number : +49 (0)6196 5719 699 2. Email address : service@lgresu.eu 3. Website : https://www.lgessbattery.com/eu 1. Phone number : +1-888-737-8104 2. Email address : RESUservice@lgensol.com 3. Website : www.lgessbattery.com/us 1. Phone number : - From Australia - 1300-677273 - From New Zealand - Land 0061 1300 677 273 - From New Zealand - Mobile (+61) 1300 677 273 2. Email address : productau@lgensol.com 3. Website : www.lgessbattery.com/au

June 23, 2021 Recall Update: LG Energy Solution Announces Expansion of Existing Free Replacement Program Due to Risk of Fire in Certain Energy Storage System (ESS) Home Batteries The voluntary recall and free replacement program covers ESS Home Batteries containing cells manufactured between April 2017 and September 2018, and expands existing replacement programs underway in certain markets (please refer to https://www.lgessbattery.com/us/home-battery/news-view.lg?blcSn=1233&devonTargetRow=1&devonOrderBy=&searchType=all&searchKey= for the existing replacement program underway). LG Energy Solution will cover the costs related to this replacement program. LG Energy Solution has announced the recall and free replacement program following reports from the field about overheating incidents linked to certain ESS Home Batteries. LG Energy Solution will undertake inspections and replacement of the potentially affected ESS Home Batteries and will also implement safety-enhancing upgrades for the battery management and control software. In conducting this voluntary replacement program, LG Energy Solution is fully cooperating with the Consumer Product Safety Commission. Jong Hyun Kim, President of LG Energy Solution, said, "customer safety and product quality are our highest priority. With this announcement, LG Energy Solution will further enhance the safety of our products in our bid to make the world's safest batteries." Replacement Scope and Details LG Energy Solution's replacement program will provide free replacement batteries which incorporate manufacturing process improvements that are designed to further enhance the safety of ESS Home Batteries. LG Energy Solution, in cooperation with its partners, will contact potentially affected customers to arrange for the replacement, and all proposed safety measures will take place following such consultation with customers. Where possible and before the replacement is completed, LG Energy Solution will also implement remote modifications to the potentially affected ESS Home Batteries to reduce the potential for overheating until replacement is complete. In addition, LG Energy Solution will update the battery diagnostic and control software for all replacement batteries. Field inspections will also be undertaken to monitor and minimize the potential for further incidents. Owners of potentially affected ESS Home Batteries will be contacted directly. In order to determine whether your ESS Home Battery is within the scope of the free replacement program, please visit https://www.lgessbattery.com/us/home-battery/checkSN.lg and search for your product's Serial Number. If your Serial Number is eligible for replacement, please contact the relevant LG Energy Solution Customer Care Centre (see below for regional contact details) or your ESS Home Battery installer to arrange for an inspection and replacement of your ESS Home Battery. Instructions on how to find your product's Serial Number can be found in "Appendix A" below. Check the Serial Number of your product at: https://www.lgessbattery.com/us/home-battery/checkSN.lg LG Energy Solution Contact: USA: Tel 1-888-737-8104 / Email RESUservice@lgensol.com About LG Energy Solution LG Energy Solution is a global leader manufacturing advanced lithium-ion batteries for Electric Vehicles (EV), Mobility & IT applications, and Energy Storage Systems (ESS). With 30 years of experience in advanced battery technology, we continue to grow rapidly towards a more sustainable future. With over 23,000 employees working within its robust global network that spans the US, Europe, Asia, and Australia, LG Energy Solution is more committed than ever to developing innovative technologies that will bring the future energy a step closer. For more information, please visit https://www.lgensol.com. Appendix A - How to locate your ESS Home Battery's Serial Number For ESS Home Battery model RESU10H: The serial number label is located behind the access door of the ESS Home Battery. Notice to Installer: By executing the actions necessary to complete the removal and repackaging of the recalled batteries per the instructions of LGES, you acknowledge that you (1) are acting as an agent of LGES for this limited purpose; (2) have been provided with Special Permit DOT-SP 21138 (First Revision) governing the performance of the recall activities; (3) have received and reviewed LGES' training materials and instructions on performing these duties; and (4) are following LGES' training and instructions consistent with the requirements of the Special Permit.

LG Energy Solution Announces Plan for Replacement of Certain Energy Storage System (ESS) Batteries to Strengthen Confidence in the ESS Industry and Further Enhance Safety The Replacement Program Prioritizes Safety to Uphold LG Energy Solution's Quality-First Principles The proposed free replacement program encompasses ESS batteries manufactured between April 2017 and September 2018, and expands existing replacement programs underway in certain markets. LG Energy Solution is announcing the replacement program because of reports that some affected ESS products are overheating, presenting potential safety hazards to customers. LG Energy Solution will undertake global inspections, replacement, and safety-enhancing upgrades of battery management and control software for the affected ESS units in cooperation with its customers and with those global product safety authorities responsible for product recalls in relevant markets. LG Energy Solution will cover related costs for the proposed replacement program. SEOUL, South Korea, May 25, 2021 /PRNewswire/ -- Jong Hyun Kim, President of LG Energy Solution, said, "customer safety and product quality are the highest priority in our decision-making process. With the announcement today, we will further enhance the safety of our products, as LG Energy Solution strives to make the world's safest batteries." As a market-leading company with customer safety and product quality as its top priority, LG Energy Solution is announcing a replacement program for certain ESS batteries. LG Energy Solution is conducting this precautionary action and will work in concert with those global product safety authorities responsible for product recalls in the jurisdictions where LG Energy Solution's ESS batteries have been sold. Replacement Scope and Details ESS batteries subject to the announced program cover lithium-ion battery cells for certain ESS products manufactured between April 2017 and September 2018. LG Energy Solution conducted a review of its manufacturing and quality assurance processes in relation to reported incidents that occurred due to the overheating of the batteries subject to this program. Based on its review, LG Energy Solution has determined that there were certain issues in the early production processes for electrodes used in these potentially affected ESS batteries. LG Energy Solution's battery replacement program will provide free state-of-the-art batteries at no additional charge that incorporate manufacturing process improvements that further enhance the safety of its ESS batteries. All proposed safety measures, including the replacement of the potentially affected ESS batteries, will take place after consultation with customers. LG Energy Solution will also implement remote modifications to the potentially affected batteries, where possible, to reduce the potential for overheating while owners of the affected ESS units wait for their replacement units. In addition, LG Energy Solution will be updating the battery diagnostic and control software at domestic and overseas sites. Field inspections will also be undertaken to monitor and minimize the potential for further incidents. Where applicable, owners of potentially affected ESS batteries will be directly contacted if their battery is subject to the replacement program. Further details regarding how to participate in the free replacement program will be published shortly in cooperation with relevant global safety regulators responsible for these communications, and further information will also be available on LG Energy Solution's website. As a leading battery company, LG Energy Solution will strive to do its utmost to strengthen confidence in the ESS battery industry, by using the announced replacement program as an opportunity to promote the highest safety and quality standards for its products in the industry. LG Energy Solution is continuously re-evaluating its company-wide safety and quality processes and is committed to undertaking prompt and effective action if any issues arise that may affect customer safety. LG Energy Solution will continue to take preemptive action to ensure that customer safety remains its highest priority. About LG Energy Solution LG Energy Solution is a global leader delivering advanced lithium-ion batteries for Electric Vehicles (EV), Mobility & IT applications, and Energy Storage Systems (ESS). With 30 years of experience in advanced battery technology, it continues to grow rapidly towards the realization of sustainable life. With over 23,000 employees working within its robust global network that spans the US, Europe, Asia, and Australia, LG Energy Solution is more committed than ever to developing innovative technologies that will bring the future energy a step closer. For more information, please visit https://www.lgensol.com. CONTACT: Linh Tran (Director of Sales, Residential ESS, LG Energy Solution Michigan Inc.), Tel: 4157154673, email: ltran@lgensol.com

December 2020 Battery Recall: LG Energy Solution Michigan Recalls Home Energy Storage Batteries Due to Fire Hazard Dear Valued Customer: We would like to thank you for choosing LG's Home Battery RESU as your residential battery solution. LG Energy Solution Michigan is voluntarily recalling a limited number of residential battery products and is working with the US Consumer Product Safety Commission (CPSC) regarding this replacement program. Products included within this limited recall will be replaced free of charge. Further information about the battery replacement program is provided below. Recall Summary Name of Product: LG Chem "RESU 10H" Lithium-Ion Residential Energy Storage System Hazard: The home batteries can overheat, posing a risk of fire and emission of harmful smoke. Remedy: Replace Consumers with recalled batteries should immediately contact LG Energy Solution Michigan to schedule a free replacement. LG Energy Solution Michigan, its distributors and its installers also are attempting to contact all owners directly to arrange for modifications to the recalled batteries to reduce the risk of overheating until they can be replaced with new batteries. Consumer Contact: LG Energy Solution Michigan toll-free at 866-263-0301 from 9 a.m. to 5 p.m. ET Monday through Friday, email at mailto: RESUservice@lgensol.com, or online at www.lgessbattery.com/us and click on "Battery Recall: Free Replacement Campaign" for more information. Recall Details Units: About 1,815 Description: This recall involves the LG Chem Model RESU 10H lithium-ion storage battery that is installed as part of a residential energy solar panel system. The recalled battery allows owners to capture and store energy from the solar panels. The batteries are wall mounted and measure 29.30 x 35.70 x 8.10 inches. They weigh roughly 220 pounds. The LG Chem logo is located on the top left side of the front panel. The serial number of the recalled product begins with R15563P3SSEG and is located behind the access door of the RESU 10H (Type-R) home battery. Incidents/Injuries:The firm has received five reports of fires resulting in minor property damage. No injuries have been reported. Sold At: Various distributors of solar energy storage systems nationwide, including, but not limited to Sunrun, AEE Solar, Baywa, CED, Krannich, Independent Electric Supply, and Inter Island Solar Supply, from January 2017 through March 2019 for about $8,000. Importer: LG Energy Solution Michigan, Inc., of Holland, Mich. (formerly LG Chem Michigan Inc.), a wholly-owned subsidiary of LG Energy Solution, Ltd. (in turn a wholly-owned subsidiary of LG Chem Ltd.). Manufactured in: Korea You can check your battery's serial number by following the below guideline and confirm its eligibility for replacement via the link below. [Serial Number Check Link] Photos Recalled RESU 10H (Type-R) home battery The serial number label is located behind the access door of the recalled RESU 10H (Type-R) home battery. Notice to Installer: By executing the actions necessary to complete the removal and repackaging of the recalled batteries per the instructions of LGES, you acknowledge that you (1) are acting as an agent of LGES for this limited purpose; (2) have been provided with Special Permit DOT-SP 21138 (First Revision) governing the performance of the recall activities; (3) have received and reviewed LGES' training materials and instructions on performing these duties; and (4) are following LGES' training and instructions consistent with the requirements of the Special Permit.