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Raw Materials Index

From 1 May 2026, a raw materials and energy surcharge will be shown on invoices. This surcharge is temporary and provisionally limited to 31 October 2026

Download Raw Materials Index (RI)

You can view the images in full size via the download link.

Updated 24 July 2026

Table of Raw Material Indices (RI): RI 90 ROXOR conventional/organic, RI 13 AMSTUTZ, RI 15 Petrofer. Monthly index values and costs (Rp.) March–July 2026, base March 2026=100. Notes on validity, LAEMMLE logo.
Line chart of Raw Materials Index (RI), Mar–Jul 2026: all start at 100 in March. RI 15 Petrofer and RI 90 ROXOR (conventional) jump to >165. RI 91 ROXOR Bio climbs to ~130; RI 13 AMSTUTZ to ~118.

It is divided into the following types of surcharges:

Brand
Group
Surcharge for the month of August
ROXOR
90 Raw materials and energy surcharge ROXOR conventional
Item No. TEMPRE90
CHF 0.84/kg
ROXOR
91 Raw materials and energy surcharge ROXOR Bio
Item No. TEMPRE91
CHF 0.39/kg
AMSTUTZ
13 Raw materials and energy surcharge AMSTUTZ
Item No. TEMPRE13
CHF 0.22/kg
Petrofer
15 Raw materials and energy surcharge Petrofer
Item No. TEMPRE15
CHF 0.87/kg


We have classified each of our products into these groups because the raw materials behave differently in these areas. The temporary surcharges are listed separately and transparently on the invoice, in the same way as VAT.

The following example relates to the month of May.

Table showing raw material and energy surcharges for AMSTUTZ, Petrofer, ROXOR (conventional) and ROXOR Bio. Includes item number, quantity, unit price and total amount of extra costs based on net weight of products.


The amount of the surcharge is determined using the RI (Raw Materials Index). For each item, we calculate the raw materials deviation and then work out the average per group. This average becomes the index. If, for example, the index for organic products ‘91 Raw Material and Energy Surcharge ROXOR Bio’ rises from 100 to 107, this results in a surcharge of 7 rappen per kilogram. Only the actual fluctuations in raw material and energy costs are taken into account; no other imputed additional costs are included in the calculation.

The RI (Raw Materials Index) is calculated monthly and set on the 1st of each month for the following month. The most recent calculation for March 2026 serves as the base index of 100.

  • The index is valid from the 1st to the end of each month (e.g. the May index is valid from 1 May to 31 May).
  • The index is recalculated every month
  • The index is published on this website on the 25th of each month
  • The order date is decisive

We publish the index and the chart via this link so that you can view the latest calculations at any time: laemmle-chemicals.ch/RI or via the navigation menu: laemmle-chemicals.ch -> Raw Materials Index (RI).

We will update this page monthly, around the 25th, and present the history transparently. We thank you for your trust and hope to be able to dispense with this surcharge soon.

Download Raw Materials Index (RI)

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