Our Hong Kong IT consulting focuses on the cross-border and multi-jurisdictional challenges that make APAC IT uniquely complex. Regional IT architecture design: (1) We map the organization's APAC footprint — every country of operation, every office, every data center and cloud presence, every major application, and every cross-border data flow. (2) Regulatory constraint analysis: for each country, we identify the data residency requirements, privacy regulations, and technology-specific rules that constrain architecture decisions. China is the most impactful (mandatory data localization for certain data categories under PIPL and DSL), but Indonesia (GR 71/2019), Vietnam (Decree 13/2023), and India (DPDP Act) also have localization or data processing requirements that affect architecture. (3) Hybrid cloud strategy: for most APAC enterprises, the answer is not one cloud provider — it is a strategic multi-cloud architecture. Global workloads on AWS or Azure (established APAC presence, broad service catalog), China workloads on Alibaba Cloud or Tencent Cloud (accessible from within China without Great Firewall latency), with an integration layer that synchronizes data across the boundary while respecting data residency requirements. We design the integration architecture: which data synchronizes (product catalog, pricing, non-personal operational data), which stays local (Chinese customer PII stays in China, APAC customer data stays outside China), and how the synchronization works technically (API-based replication, event-driven architecture, or batch synchronization depending on latency requirements). Cross-border connectivity: for companies connecting Hong Kong and mainland China offices, we design network architecture using: China-dedicated network links (China Telecom, China Unicom, or China Mobile international links), cloud-based interconnection (AWS Direct Connect to Alibaba Cloud via Hong Kong), or SD-WAN solutions optimized for China-international traffic. The choice depends on bandwidth requirements, latency sensitivity, and budget — MPLS from Hong Kong to Shanghai costs HKD 50,000-100,000/month, while SD-WAN solutions can reduce costs by 40-60% with acceptable performance for most business applications.