1. Communications
If you opt in, Chengyixin-related business entities and the authorized Platform Operator, Cophoda 3D, may, where permitted by applicable law, use email, SMS, telephone or messaging tools to send product updates, events, training, materials, accessories and service offers.
2. Relevance
We may use your language, organization type, linked devices and existing business relationship to select relevant content. Sensitive information unrelated to marketing is not used for targeting.
3. International and local rules
Your contact details may be processed in mainland China by Chengyixin-related business entities, Cophoda 3D or their providers. The Platform follows applicable marketing, anti-spam and international-transfer rules in the recipient's location. Any additional confirmation required by local law takes priority.
4. Withdrawal
You may opt out in the account consent center or submit a withdrawal request through the website contact page. Withdrawal stops future marketing but does not affect prior lawful processing or essential transaction, warranty, security and service notices.
5. Records
Each opt-in or withdrawal is stored with its status, version, account and time so that your latest choice can be honored.