Core Viewpoint - Choosing between self-filing and hiring a Shenzhen customs agency significantly impacts the efficiency of goods clearance [1][4] Group 1: Agency Customs Declaration - Shenzhen customs agencies provide efficient and convenient customs declaration services due to their professional teams and industry experience [1] - These agencies maintain good relationships with customs and inspection departments, allowing for quick and accurate processing of customs procedures [1] - Self-filing requires substantial time and effort to learn the customs process, which can lead to errors and delays for inexperienced companies [1] Group 2: Full Container vs. Loose Cargo - Full container customs declaration is suitable for large quantities of single-type goods, resulting in a shorter processing time of approximately 2-3 days when documentation is complete and goods are compliant [3] - Loose cargo customs declaration is for smaller quantities and multiple types of goods, leading to a longer processing time of about one week due to separate declarations and inspections [3] - Special regulatory conditions, such as inspections and quarantines, can extend the customs declaration period for both full container and loose cargo [3] Group 3: Conclusion - Engaging a Shenzhen customs agency is more time-efficient than self-filing, as these agencies can quickly and accurately handle customs procedures [4] - The customs declaration period varies based on the type of goods and regulatory conditions, necessitating careful consideration by companies when choosing their customs declaration method [4]