SI, VGM, CY and doc cut-offs decide whether your container sails. What each one is, the order they fall in, and what being shut out actually costs a China–Bangladesh shipment.

How tooling charges, T1/T2 trial rounds, mould ownership clauses and shot-life ratings work in a China OEM order — and what to sign before you pay the tooling invoice.

Why a Western NDA fails in China, what Non-disclosure, Non-use and Non-circumvention each cover, and how to make an NNN agreement a Chinese court will actually enforce.

How China’s export VAT rebate works, why it produces two versions of a factory quote, and what it means for your landed cost as a Bangladeshi importer.

What goes into a mini cold storage heat load calculation: transmission through the insulated envelope, product pull-down and latent freezing load, respiration heat, door infiltration, internal loads, and sizing the plant to a realistic daily run time.

The cold chain for hilsa (ilish): why the oily flesh oxidises fast, boat-to-landing handling, IQF versus block versus blast freezing, what glazing does and the weight-declaration honesty issue, holding temperature and the seasonal price-spread opportunity.

How to detect whether frozen cargo thawed and refroze in transit: ice-crystal and carton-staining signs, reading the reefer temperature download and data loggers, a drip-loss thaw test, and preserving evidence for a damage claim.

How to run ABC analysis on warehouse inventory: build the classification from annual consumption value, manage A/B/C classes with different control, add the XYZ demand-variability overlay, and slot the warehouse by class.

Pharmaceutical air freight from China to Bangladesh: the 2-8C and 15-25C temperature lanes, what IATA CEIV Pharma certification buys you, passive versus active containers like Envirotainer, and the cold-chain break points on the route.

Destination CFS and off-dock depot charges for LCL importers explained: de-consolidation, shed rent, D.O. fees, why minimum charges punish small shipments, and how to read a groupage quote as a landed total.