Sodium Ion Battery Materials Item Name Chemical formula model Sodium ion battery cathode material Sodium nickel–manganese oxides NaNiO.5Mn1.504 T-NMO Ternary Sodium Nickel-iron Manganese Laminate Oxide   T-NFMS Sodium Manganese Ferrate Na2/3(Fe1/2Mn1/2)O2 T-NFM Carbon-Coated Sodium Vanadium Phosphate Na3V2 (PO4)3 T-NVP Prussian Blue Powder   T-PBAs Prussian White Powder   T-PW Sodium Ion Battery Anode Material Irregular Hard Carbon Powder   T-Na-HC01 Highly Spherical Hard Carbon Powder   T-Na-HC02 Email :tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609

Supercapacitor Machine Being Shipped The holidays are over and TOB employees are back to their busy work. Today, a batch of supercapacitor equipment was shipped to a customer. Email :tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609

Overtime Acceptance of Laser Welding Machine for Lithium Ion Battery This is a laser welding machine, and the engineers have tried it many times to ensure that it can be used smoothly when it is being shippedto the customer. Email : tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609

Chinese spring festival holiday is coming, Please accept our best wishes. Thank you for your trust and being our valued clients. We look forward to serving you in 2023 and wish you peace, happiness, and abundant good health in the new year. The holiday will start from Jan. 15th, 2023 to Jan. 28th, 2023. We will resume regular business hours on Jan. 29th, 2023. Sincerely yours, TOB New Energy

Supercapacitor Equipment Being shipped Although the delivery time of the equipment was rushed, we still made all the preparations, and the equipment was packaged according to the requirements. This batch is part of the equipment of supercapacitors pilot line including; High temperature vacuum oven  Planetary Vacuum Mixer  TOB‐XFZH30 Electrode Vacuum Oven  TOB-EVO-4 Automatic winding machine TOB-3270C-180 Flatting machine  TOB-CZF60 Laser welding machine TOB-LW-Series Cell feeding machine TOB-RK60 Three Stations Glove Box Automatic Electrolyte Filling Machine TOB-ZY60-6 Email : tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609

Since 2019, Because of Corona Virus Disease 2019，COVID-19 our customers did not visit China. Recently, China's entry policy has been relaxed, Welcome to China Welcome to TOB NEW ENERGY As the follow pictures show TOB customer was inspecting in a pilot line of 66160 supercapacitor machine. From the installation to the use of the equipment, our engineers guide the whole process. The mixer and coating machine have preliminarily completed the installation and trial. Yesterday, the built-in liquid injector in the glove box was basically loaded, waiting for the trial The wiring and installation of all battery equipment are recorded by video according to customer requirements, so that they can review. Email : tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609

So glad TOB New Energy celebrates its first 10 years today. TOB New Energy started on November 18, 2012, and has gone through a full 10 years. Today we are very happy to have so many colleagues with us to spend this wonderful time.  Thanks to the colleagues who have accompanied us to grow up to now, every progress of TOB New Energy is due to your hard work. In TOB now and in the future, I hope everyone grows with the company. We also thank our former colleagues and friends who have accompanied us to grow and work hard for the past 10 years. Even though we are not fighting together at TOB New Energy for different reasons, TOB is also grateful for your efforts in the past. TOB New Energy is an ideal and self-motivated company. It is also a pragmatic company with quality and technology as the first requirements. We strive to be ourselves at every step, not blindly, not accompany, and do things in a down-to-earth manner, and move forward together towards our goal.  In the next 10 years, we will continue to keep up with the pace of new energy development. This will be a more fulfilling and busier 10 years. I hope that when we look back in this 10 years, everyone can have better memories. In addition, we wish TOB New Energy better and better in the next 10 years, and also wish our colleagues on the road of struggle to achieve success, wealth, health and love in TOB company!

The Performance and Testing of Battery The performance of secondary batteries mainly includes voltage, internal resistance, capacity, energy density, internal pressure, self-discharge rate, cycle life, sealing performance, safety performance, storage performance, appearance, etc., and other overcharge, overdischarge, corrosion resistance, etc. The Reliability Testing of Lithium Ion Battery 1） Cycle life 2） Discharge characteristics at different multipliers 3） Discharge characteristics at different temperatures 4） Charging characteristics 5） Self-discharge characteristics 6） Storage characteristics 7） Overdischarge characteristics 8） Different temperature internal resistance characteristics 9） Temperature cycling test 10）Drop test 11）Vibration test 12）Capacity test 13）Internal resistance test 14）GMS test 15）High and low temperature impact test 16）Mechanical shock test 17）High temperature and humidity test The safety test items of the battery 1） Short circuit test 2） Overcharge and overdischarge test 3） Withstand voltage test 4） Impact test 5） Vibration test 6） Heating test 7） Fire test 8） Variable temperature cycle test 9） Trickle charge test 10）Free fall test 11）Low air pressure test 12）Mandatory discharge test 13）Electric hot plate test 14）Thermal shock test 15）Acupuncture test 16）Extrusion test 17）Heavy object impact test Email : tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609