Argus China Base Oils Methodology and Specifications Guide

This document is a methodology and specifications guide for Argus China Base Oils. It outlines the rationale behind Argus's methodologies, which aim to reflect market trading practices and produce reliable price assessments. The guide details the survey process used to gather market data from various participants, including producers and consumers. It explains how Argus reporters collect and validate transaction data, including the criteria for assessing the quality and integrity of the data. The document also describes the verification process for transaction data, including primary and secondary tests applied by reporters and editors. Additionally, it discusses the assessment guidelines used when transaction information is insufficient, emphasizing the importance of using a rigorous and replicable approach to determine market value. The guide serves as a comprehensive resource for understanding the methodologies employed by Argus in the base oils market.