Q. Where can I find value chain information for my company?

Try

1. Value chain, supply chain discussion on Bentley library guide on operations analysis  

2. Proquest Research Library   

3. Expanded Academic ASAP

Use the keywords associated with part of the value chain you need:

a) shipping, receiving, warehousing and inventory management of raw materials.  Sample search = [underarmour] AND warehousing.

OR 
b) Value chain associated with marketing and sales, outbound logistics. Sample search = [starbucks] AND "mobile payment"

c) Also try keywords procurement, technological development, human resource management and company infrastructure, which are four support activities underpinning the creation of value.  Sample search = [3M] AND procurement.

NOTEWORTHY SITES:

4 A. Understand how value is created with this page by Mind Tools on "Porter's value chain"

4 B. Explore Investopedia value chain page for a detailed breakdown that can answer the Q of what value means in terms of company's operations