The AdBlue index is based on two sub indices:
A. 40% based on the Urea (Prill) fob Baltic price (see below)
B. 60% based on the Eurostat Consumer price index (see below)
As the AdBlue sales price is quoted in pound the urea US $ quotes are converted into pounds at the end of each trading day.

The resulting index variation will be applied to the contract price.

Ad A. This index is calculated based on the weekly Profercy report Urea prilled bulk Baltic high– Fast ports fob. Every Thursday market prices are published in this report.

Ad B. This index is calculated based on the data published on Eurostat site
www.epp.eurostat.ec.europa.eu HICP (Harmonised Indices of Consumer Prices) –All items - Index (2005 = 100) / Euro area.

The exchange rate Pound – dollar can be find at the website of the Bank of England: www.bankofengland.co.uk ( -> Statistics -> Interest and Exchange Rates -> Spot Exchange Rates -> US dollars -> Daily)
Below you will find a detailed description with an example of how the index is calculated.

The quarterly index developments are published further on this website.

AdBlue Index calculation:

Ad A. Urea (Prill) fob Baltic (metric tonne)

Profercy Report publishes every week a minimum and a maximum for Urea prilled bulk prices among which Baltic – Fast ports fob. Every Thursday market prices are published in overview table. The quarterly index is calculated as follows: take the maximum US $ quote of the first Thursday of every month convert it into Pound against the exchange rate of this Thursday as published by ECB and calculate the quarterly average index from these three quotations.

At the first of the month of a new quarter the quarterly index variation is calculated: this quarterly index variation equals the variation between the last known quarter index divided by previous one.

As an example we calculate the urea index variation per July 1, 2007:
Urea prilled bulk Baltic fast ports fob high Q2 2007: 218,51
Urea prilled bulk Baltic fast ports fob high Q1 2007: 211,05
Urea index variation for Q3 2007: (218,51 – 211,05) / 211,05 = 3,53%

Ad B. Eurostat Consumer price index

At www.epp.eurostat.ec.europa.eu
under Most popular database tables at the left side of the screen you will find Inflation (monthly), HICP - All items index (2005 = 100) with Euro area which gives a monthly index figure.

At the first of the month of a new quarter the quarterly index variation is calculated as follows: the quarterly index variation equals the variation between the index of the first month of the last quarter divided by the index of the first month of the previous quarter.

As an example we calculate the consumer price index variation per July 1, 2007:
Consumer price HICP – All items - Index (2005 = 100) April 2007: 104,16
Consumer price HICP – All items - Index (2005 = 100) January 2007: 102,51
Consumer price index variation for Q3 2007: (104,16 – 102,51) / 102,51= 1,61%

Price update per July 1, 2007
40% of Urea index variation for Q3 2007: = 40% of 3,53% = 1,41%
60% of Consumer price index variation for Q3 2007: = 60% of 1,61 % = 0,97%

Price increase per July 1, 2007 = 2,38%