# EDGAR Filing Document

**Accession Number:** 0001054905
**File Stem:** 0001193125-23-072273
**Filing Date:** 2023-3
**Character Count:** 1237
**Document Hash:** 0614243543cd5e8e32277f71854cb3eb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-072273.hdr.sgml**: 20230316

**ACCESSION NUMBER**: 0001193125-23-072273

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230316

**DATE AS OF CHANGE**: 20230316

**EFFECTIVENESS DATE**: 20230316

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** INNOSPEC INC.
- **CENTRAL INDEX KEY:** 0001054905
- **STANDARD INDUSTRIAL CLASSIFICATION:** CHEMICALS & ALLIED PRODUCTS [2800]
- **IRS NUMBER:** 981081725
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-13879
- **FILM NUMBER:** 23737899

**BUSINESS ADDRESS:**
- **STREET 1:** 8310 SOUTH VALLEY HIGHWAY
- **STREET 2:** SUITE 350
- **CITY:** ENGLEWOOD
- **STATE:** CO
- **ZIP:** 80112
- **BUSINESS PHONE:** 7203556451

**MAIL ADDRESS:**
- **STREET 1:** 8310 SOUTH VALLEY HIGHWAY
- **STREET 2:** SUITE 350
- **CITY:** ENGLEWOOD
- **STATE:** CO
- **ZIP:** 80112

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** OCTEL CORP
- **DATE OF NAME CHANGE:** 19980209

### Attached PDF Documents

**Attachment 1:** `d430929dars.pdf`

_No text found in this document._