Spam Companies

I am getting spam email from the following companies. I have never heard of them before, and certainly did not give them my email address. They have dubious business practices. Here are all their details. Name 'em and shame 'em:

Moonriver Singapore
Email from admin@moonriver.com.sg
Site: http://www.moonriver.com.sg/
Singapore Outlet:
Bugis Junction, Unit 02-40
Tampines One, Unit 01-35
HarbourFront Center, Unit 01-93
Plaza Singapura, Unit B1-33 Square2, Unit 01-39
Raffles Place Xchange, Unit B1-66
Malaysia Outlet: Unit F18, No. 1 CityOne Megamall, 93450 Kuching, Malaysia
There's also a link to http://shusingapore.com/ so they're probably related.

ClicPlan Singapore
Email from clicplan-sg@w.clicplan.sg
REWORLD MEDIA Pte Ltd (ClicPlan SG), Registration No: 201228461D
51 Goldhill plaza #12-11 308900 Singapore
members@clicplan.sg
This site uses the funny format 100,00$. Using , for decimals and putting the $ at the end? Is this even a Singapore company?

Tuition SG
Email from noreply@betterbusiness2000.com
Tel: 62977340
www.tuitionportal.info
A .info address? I've only seen those used by Sri Lankan spam.

Michsara Online Boutique
Email from info@michsara.com
http://michsara.com/
rem@link.rm0002.net
773-470-0350
Singapore 738081

Trendy Singapore
Email from enquiry@trendysg.com

Carousell
Email from jing.carousell@gmail.com
https://carousell.co

I hope their details get harvested and they get hit with more spam than they create.