金秋送爽，皓月当空，中秋团圆佳节与新中国成立 77 周年华诞如期而至。值此双节来临之际，皓天设备全体员工向长期信任、支持我司的新老客户、合作伙伴致以诚挚的节日祝福，祝您阖家团圆、万事顺遂，国庆旅途平安喜乐！

根据国务院 2026 年法定节假日调休安排，结合我司生产车间、技术售后、销售商务部门实际运营情况，现将中秋、国庆放假事宜统一公告如下：

一、放假时间

1. 中秋节：9 月 25 日（周五）—9 月 27 日（周日），共计 3 天，9 月 28 日正常上班；

2. 国庆节：10 月 1 日（周四）—10 月 7 日（周三），共计 7 天，10 月 8 日全面复工复产；

3. 调休提醒：9月20日、10 月 10 日（周六）正常补班，恢复完整业务对接。

二、假期业务运行说明

1. 生产车间、仓储物流中秋、国庆假期全线停工，暂停设备排产、整机发货、配件出库、上门送货；节前已排产订单，复工后按下单顺序优先安排生产与交付。

2. 现场售后、上门调试、设备校准维修假期无外勤工程师上门服务，设备现场改造、实验室集群管控系统上门安装全部顺延至节后处理。

3. 线上咨询与技术支持假期安排销售、技术工程师轮值在线，可通过微信、企业微信、留言咨询以下业务：① 高低温、低温低湿干冷试验箱选型、报价、测试方案定制；② GB/T2423.4、IEC60068 等标准配套设备技术资料、样机参数；③ 设备集群联动、AI 故障预判、远程可视化监控数字化方案对接；④ 紧急设备故障远程线上排查、操作指导。所有留言、报价需求、方案需求，复工当日第一时间专人跟进回复。

4. 加急项目说明若您有储能 PACK、车载电子、半导体认证等紧急干冷测试设备定制项目，可提前与专属业务对接人登记，节后优先排产、优先交付。

三、节前工作温馨提示

1. 各实验室客户请提前规划设备采购、设备改造、实验室数字化升级需求，避开长假交付空档；

2. 正在进行干冷耐久、温循老化等长周期测试的客户，节前做好设备整机检修、除霜系统、气密气缸检查，避免假期设备故障导致样品失效；

3. 存放设备、配件的企业客户，假期做好厂房防潮、防尘、断电安全管理。

四、节日寄语

十余年来，皓天试验设备深耕可靠性环境模拟测试领域，持续为新能源储能、车载电子、半导体、户外工控、光伏医疗行业提供标准化低温低湿、快速温变、冷热冲击试验设备与整套测试解决方案。每一份客户的认可，都是我们持续深耕设备硬件、数字化管控系统的动力。

节后我们将以更专业的技术、更好的售后，为各实验室、制造企业的产品可靠性测试保驾护航。

再次祝愿所有客户、合作伙伴：中秋月圆人团圆，国庆安康万事兴！

东莞市皓天试验设备有限公司2026 年 09 月 19 日

Holiday Notice for Mid-Autumn Festival & 77th National Day of the People’s Republic of China

Date: September 19, 2026Company: Dongguan Haotian Test Equipment Co., Ltd.

Cool autumn breezes sweep the land while the bright full moon hangs high in the sky. The reunion-filled Mid-Autumn Festival coincides with the 77th anniversary of the founding of the People’s Republic of China. On the arrival of these two grand festivals, all staff of Haotian Equipment extend sincere holiday greetings to our new and long-term customers and partners who have trusted and supported us over the years. May your families enjoy joyful reunions, all your wishes come true, and may you have safe and pleasant travels during the National Day holiday!

In accordance with the 2026 statutory holiday adjustment schedule issued by the State Council, combined with the actual operation of our production workshop, after-sales technical department, sales and business teams, we hereby issue a unified notice regarding our holiday arrangements for the Mid-Autumn Festival and National Day as follows:

1. Holiday Schedule

• Mid-Autumn Festival: Friday, September 25 – Sunday, September 27 (3 days in total). We will resume normal work on Monday, September 28.

• National Day: Thursday, October 1 – Wednesday, October 7 (7 days in total). Full production and business operations will resume on Thursday, October 8.

• Adjustment Reminder: We will work regular shifts on Saturday, September 20 and Saturday, October 10 to make up for the holidays, with full business support available on these two days.

2. Business Service Arrangements During the Holidays

1. Production Workshop & Warehousing LogisticsAll production lines will suspend operation throughout both holidays. Equipment scheduling, finished machine delivery, spare parts outbound and on-site shipment services will be halted. All orders scheduled before the holiday will be produced and delivered on a first-come-first-served basis immediately after we resume work.

2. On-Site After-Sales Service, Commissioning, Calibration & MaintenanceNo field engineers will be dispatched for on-site services during the holiday. On-site equipment renovation and on-site installation of laboratory cluster control systems will all be postponed until after the holiday.

3. Online Consultation & Technical SupportOur sales and technical engineers will take turns on duty online during the holiday. You may reach us via  WeCom or message boards on our official website for inquiries related to the following services:① Selection, quotation and customized testing schemes of high-low temperature chambers and low-temperature & low-humidity dry cold test chambers;② Technical documents and prototype parameters of equipment complying with standards including GB/T2423.4 and IEC60068;③ Communication on digital solutions such as equipment cluster linkage control, AI abnormality early warning system and remote visual monitoring;④ Remote online troubleshooting and operation guidance for urgent equipment malfunctions.All messages, quotation requests and solution inquiries will be assigned to dedicated staff for priority follow-up and response on the first working day after the holiday.

4. Urgent Customization ProjectsIf you have urgent customized dry cold test equipment projects for energy storage PACKs, automotive electronics or semiconductor certification, please register in advance with your exclusive account manager. We will arrange priority production and delivery for your orders after resumption.

3. Pre-Holiday Friendly Reminders

1. Customers operating laboratories are advised to arrange equipment procurement, equipment renovation and laboratory digital upgrading plans in advance to avoid delivery delays caused by the long holiday break.

2. For customers conducting long-term tests such as dry cold endurance cycling and temperature cycling aging, please conduct a full equipment inspection before the holiday, including defrosting systems and airtight cylinders, to prevent sample failure resulting from unexpected equipment malfunctions during the break.

3. Enterprises storing equipment and spare parts are reminded to implement moisture-proof, dust-proof and power-cut safety management for workshops during the holiday.

4. Festival Message

For more than a decade, Haotian Test Equipment has been deeply engaged in the field of environmental simulation reliability testing. We keep supplying standardized testing equipment including low-temperature & low-humidity chambers, rapid temperature change chambers and thermal shock chambers, as well as complete sets of testing solutions for industries such as new energy storage, automotive electronics, semiconductors, outdoor industrial control, photovoltaic and medical devices. Every trust from our customers fuels our continuous research and optimization of equipment hardware and digital control systems.

After the holiday, we will deliver more professional technical support and improved after-sales services to safeguard the product reliability testing of laboratories and manufacturing enterprises.

Once again, we wish all our customers and partners:May the full moon bring your family together this Mid-Autumn Festival, and may peace and prosperity accompany you throughout the National Day holiday!

Dongguan Haotian Test Equipment Co., Ltd.September 19, 2026