Stock and price data | Last updated: September 1, 2026, 20:47 (GMT+8)
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Purchase Guide

Date-code Guide

The platform evaluates “within N years” by calendar year, without counting exact months, dates or elapsed days. The examples below use the current year 2026.

Calendar-year rule

The current calendar year is year 0. “Within N years” includes the current year and the previous N calendar years, with both boundary years included.

Accordingly, in 2026, date codes from 2024, 2025 and 2026 are all described as within 2 years. Within 5 years includes date codes from 2021 through 2026.

Note: “Within 2 years” is a calendar-year range and does not mean exactly 24 months before today.

Examples for 2026

RequirementAccepted year rangeCalculation
Current year2026Current calendar year only
Within 1 year2025–2026Current year plus 1 previous calendar year
Within 2 years2024–2026Current year plus 2 previous calendar years
Within 3 years2023–2026Current year plus 3 previous calendar years
Within 5 years2021–2026Current year plus 5 previous calendar years

Identification and order confirmation

  • Date code or lot information is normally read from product, reel or outer-packing labels; manufacturer coding rules apply
  • If mixed years or multiple lots are acceptable, define the permitted range during order review
  • State any exact year, week, single-lot or no-mixing requirement when submitting an order or BOM
  • Available date codes are reviewed before contracting; the approved order and formal contract govern the final range
  • Date-code age alone does not define quality grade, shelf life or application suitability

Note: Unclear labels, special manufacturer codes or week-specific requirements require separate verification and are not determined only by this year-range rule.

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