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How often are they published? What are they called? What do they cover?

Below are links to view coverage for the two separate monthly reports by Chemical Data LLC

– Monthly Petrochemical & Plastics Analysis (MPA): https://www.icis.com/explore/services/cdi-mpa/

  • The report is released around 22nd – 24th each month and is sometimes referred to as the “yellow report”

– Monthly Feedstocks & Fuels Analysis (MFA): https://www.icis.com/explore/services/cdi-mfa/

  • The report is released at the end of the month with the exception of November/December, as these months are combined and released at the beginning of December.
  • The report is sometimes referred to as the “orange report”, “feedstock study”, or “oil & gas” report

Publication schedule


The Publication Schedule shows all publication dates. CDI MPA and CDI MFA are two separate reports that must be purchased separately.

Benchmark prices

The benchmarks in this publication represent the U.S. contract price between sellers and a market segment (usually defined by grade, type of buyer, and/or shipment size), typically before discounts/rebates, unless otherwise noted in the individual product statistical table.

CDI posted prices are in dollars per pound ($/Lb) except for toluene, benzene, cyclohexane and methanol, which are listed in dollars per gallon ($/gal). Market segments can be large, medium or small buyer, and/or specified by barge, railcar or truck shipments.


Names we are known by in the Industry: ChemData, Chemical Data or CDI (which used to stand for Chemical Data Incorporated). Now we are formally: Chemical Data LLC

Homo-Polymer vs Co-Polymer prices (PE or PP)

We do not publish different price series for Co-Polymer (resins) such as PE or PP. Our posted prices are non-descript and can be used to track both homo-polymer and co-polymer.

Glossary of Abbreviations and Acronyms

TT = Tanktruck {A tank truck, tanker truck or tanker, is a motor vehicle designed to carry liquefied loads, dry bulk cargo or gases on roads.}

TC or TKCAR = Tankcar {A type of railroad car (UIC: railway car) or rolling stock designed to transport liquid and gaseous commodities.}

¢/lb = cents per pound

¢/gal = cents per gallon

HC = Hopper Car {A container for bulk solids such as grain, rock, or plastic resin, typically one that tapers downward and is able to discharge its contents at the bottom.}

Frt. Alld. = Freight Allowed {FOB destination, freight prepaid and allowed. The seller pays and bears the freight charges and owns the goods while they are in transit. Title passes at the buyer’s location.}

FOB = Free on Board {defines the point at which a seller is no longer responsible for shipping cost or liability, e.g. FOB US Gulf}

Frt. Equal = Freight Equalized {consumer pays freight charge from closest supplier’s plant}

Dlvd. = Delivered

FAS = Free Alongside Ship {is a trade term requiring the seller to deliver goods to a named port alongside a vessel designated by the buyer. “Alongside” means that the goods are within reach of a ship’s lifting tackle.}

GP = General Purpose {useful in many ways; not limited in use or function}

GPPS = General Purpose Polystyrene

HIPS = High Impact Polystyrene

HIC = Household, Industrial & Consumer blow moulding or BM grades

HMW = High molecular weight film grade HDPE resins

INJ = injection, or injection moulding grades

kta = thousand tons per annum

REFY = Refinery grade propylene or RGP {purity of around 70% with a minimum of 60%}

CHEM = Chemical grade propylene or CGP {with a minimum purity of 93-94%}

POLY = Polymer grade propylene or PGP {with a minimum purity of 99.5%}

P/L or PIPELN = Pipeline

Xtal = Crystal

Estimates and Mid-Cycle updates

Our posted prices for each month are typically released around the 22nd to 24th of each month. Since this is prior to the end of the month, published prices are at times initially estimated, as noted by an “e” after the price in the pricing table. The “e” will usually be removed by the next publication, once the price is considered to be final by Chemical Data.

More recently, we have begun to remove the “e” from a product on the product data table of the online Chemical Data Dashboard shortly after product prices are considered final, and prior to the next publication. Monitoring the Dashboard is the best method of knowing when a product price is converted from an estimate to a final price by Chemical Data. Whether or not an “e” is used, and when it may be removed, varies by circumstance and product.

If we miss our original estimate for any given month, once prices are finalised in the market, we issue a mid-cycle-update. In that update, we put the new price in the specific pricing table online, the dashboard database is updated, and we send an email notification to all registered users of the publication.

We have been using this estimate methodology since 1979, and the mid-cycle update has been in existence since 2010.


If a retroactive revision is needed for a benchmark price or a volume, it will be designated by “r” following the number.

NMA or non-market adjustment

Non-market price adjustments are implemented on rare occasions when it is determined that the level of a price assessment has become insufficiently representative, usually over a period of years, due to an accumulation of hidden discounts. Generally, this applies to plastics only, and not chemicals. If it is decided that a NMA is needed, a 6 to 12 month notification period is given in our reports.

Freight rates

Does CDI publish or report on freight rates? Sometimes, in our annual economic updates for each product, which are published annually throughout the year (see our Index of Supplemental Tables for each product’s presentation date) we have the freight rates broken out, depending on the product. These are rough average estimates for the industry, and they often are very similar from year to year.

Index of supplemental tables and special topics

The easiest way to access supplemental tables such as capacity, supply and demand, and manufacturing economics, is to create a product data table in your Dashboard. Each product has a “Quick Access” button in its row. Clicking that button shows a menu where all of the supplemental tables are readily accessible. Pricing data is also available for download in this menu.

Another way to find the supplemental tables is in the PDF files or hard copies. This is the old method of finding these tables. In the PDF or hardcopy of our Monthly Petrochemicals & Plastics Analysis (MPA) there is an Index of Supplemental Tables that shows the publication month of each product’s special topics or presentations (those being capacity, supply/demand, manufacturing economics, and historical prices). The Index is typically found on page 3 of the full report each month.

Our Monthly Feedstocks & Fuels Analysis (MFA) has an Index of Special Topics, which is usually found on page 5 of the full report each month. There is also a historical index published in the January issue each year.

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