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Stamping, moulding and assembly contracts pass through steel, aluminium, resin, rubber and chips. Each has a different index and a different volatility profile. These guides show how to escalate the material portion of a supply agreement without re-pricing the whole part.
Divide the current value of BLS series WPU101707 (Cold Rolled Steel Sheet and Strip) by its value at contract signing, then apply that ratio to the cold rolled steel sheet part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU102501 (Aluminum Mill Shapes) by its value at contract signing, then apply that ratio to the aluminum part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU102502 (Copper and Brass Mill Shapes) by its value at contract signing, then apply that ratio to the copper part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU07110224 (Synthetic Rubber) by its value at contract signing, then apply that ratio to the synthetic rubber part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU06790918 (Carbon Black) by its value at contract signing, then apply that ratio to the carbon black part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU066 (Plastic Resins and Materials) by its value at contract signing, then apply that ratio to the resin part of the price. BLS also publishes thermoplastic, thermosetting and finished plastic products series, so naming the exact one matters more than usual.
Read more →Split chips from the equipment that makes them. Chip prices index to BLS PCU334413334413, which has trended down over the last decade. Fab equipment indexes to PCU333242333242, which has trended up. A shared index will misprice one side.
Read more →Consumer electronics has real, direct BLS output indices per product category: wireless devices (PCU334220334220), computers (PCU334111334111), audio/video equipment (PCU334310334310), small appliances (PCU335210335210). Pick the code that matches the actual finished product, not a blended "electronics" number, since no such single index exists.
Read more →Divide the current value of BLS series WPU114905 (Ball and Roller Bearings) by its value at contract signing, then apply that ratio to the bearings part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU114302 (Fluid Power Valves) by its value at contract signing, then apply that ratio to the fluid power valves part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Divide the current value of BLS series WPU113603 (Nonmetallic Abrasive Products (Including Diamond Abrasives)) by its value at contract signing, then apply that ratio to the abrasives part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Read more →Series WPU101707: current value and year-over-year change.
Series WPU102501: current value and year-over-year change.
Series WPU10250162: current value and year-over-year change.
Series PCU33131-33131-: current value and year-over-year change.
Series WPUSI019011: current value and year-over-year change.
Series WPU102502: current value and year-over-year change.
Series PCU326220326220D2: current value and year-over-year change.
Series WPU07110224: current value and year-over-year change.
Series WPU06790918: current value and year-over-year change.
Series PCU326122326122: current value and year-over-year change.
Series PCU326160326160: current value and year-over-year change.
Series WPU0722: current value and year-over-year change.
Series WPU031: current value and year-over-year change.
Series PCU325211325211: current value and year-over-year change.
Series PCU325211325211P: current value and year-over-year change.
Series PCU3252113252111: current value and year-over-year change.
Series WPU066: current value and year-over-year change.
Series WPU072205011: current value and year-over-year change.
Series PCU334413334413: current value and year-over-year change.
Series PCU333242333242: current value and year-over-year change.
Series PCU334412334412: current value and year-over-year change.
Series PCU334418334418: current value and year-over-year change.
Series PCU334417334417: current value and year-over-year change.
Series PCU33441K33441K: current value and year-over-year change.
Series PCU335910335910: current value and year-over-year change.
Series PCU334419334419: current value and year-over-year change.
Series PCU3344--3344--: current value and year-over-year change.
Series PCU334413334413A: current value and year-over-year change.
Series PCU334---334---: current value and year-over-year change.
Series PCU33441-33441-: current value and year-over-year change.
Series WPU114905: current value and year-over-year change.
Series WPU071304: current value and year-over-year change.
Series PCU333996333996: current value and year-over-year change.
Series WPU114302: current value and year-over-year change.
Series WPU113603: current value and year-over-year change.
The core formula is: adjusted portion equals covered portion multiplied by (current index divided by base index). The ratio of current to base index is the escalation factor. It is applied to the indexed part of the price, not the whole contract, and is usually bounded by a cap.
A cap limits how much the price can rise in an adjustment. A floor limits how much it can fall. Without a cap, the buyer carries unlimited upside risk. Without a floor, the supplier carries unlimited downside risk. Most working contracts have at least one.
A working escalation clause needs six defined terms: the named index series, the base period, the averaging window, the publication-lag treatment, the review frequency, and a cap or floor. A template that leaves any of those as vague language ("the applicable index," "as published") is where disputes start. Below is a skeleton with each term marked for the specific values a real contract needs to fill in.
Publication lag is the gap between the period an index measures and the date the statistics agency releases that number. BLS PPI data typically publishes within about two weeks of month end, commonly ten to fifteen days. If a clause does not name which release to use, both sides can end up applying different numbers on the same adjustment date.
The base period is the index value every future adjustment gets compared against. Pick a period that reflects normal conditions, not a seasonal high or low, and tie it to a real contract event, like signing or bid submission, not an arbitrary date.
The averaging window is how many months of index data get blended before a clause applies them. A single month reacts fast but carries noise. A 12-month average is smooth but slow to catch a real trend. The same index, read through a different window, produces a different adjustment on the same day.
Most escalation clauses are written to move price only one way: up, when the index rises. A de-escalation clause is the same ratio mechanism applied when the index falls, lowering the price instead of leaving it stuck at the higher level. Without explicit de-escalation wording, a clause that only defines an upward adjustment leaves the buyer overpaying indefinitely once the index drops back down.
Escalake tracks the index, applies the formula, and gives both sides a figure they can confirm.